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  • Class 10 Maths MCQs 2023 Sindh Board [All Chapters]

    Class 10 Maths MCQs 2023 Sindh Board [All Chapters]

    Students, are you looking for Maths MCQs Class 10 Sindh Board 2023 if yes? then you see the right post.

    We provide 10th maths MCQs that will help you improve your knowledge, test learning skills, and gain maximum marks in exams.

    Also, Check More Subject Notes:

    IslamiatEnglish

    Here you can get your 10 class maths MCQs notes for test and exam preparation that are made by subject experts and qualified teachers according to the new book curriculum and latest exam paper pattern.

    Class 10 Mathematics MCQs Sindh Board
    Maths MCQs Sindh Board

    Math MCQs Class 10 Sindh Board PDF

    Students you can prepare these all chapter-wise important MCQs that help in your revision, and get a quick review of the syllabus for 10th-class mathematics exams.

    Class 10 Math MCQs [All Chapters 17 to 30]DOWNLOAD PDF

    Conclusion

    The topic of this post is maths mcqs for class 10 Sindh board with providing a pdf file additionally we add this post into the 10 class category.

  • Class 12 Chemistry Chapter 19 MCQs – Chemical Industries in Pakistan

    Class 12 Chemistry Chapter 19 MCQs – Chemical Industries in Pakistan

    Here we are going to provide class 12 chemistry chapter 19 Chemical Industries in Pakistan solved MCQs that help Sindh board students in their exam.

    12 Class Chemistry Chapter 19 MCQs with Answers

    This 2nd year’s chemistry chapter 19 Sindh board MCQs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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    Class 12 Chemistry Chapter 18 MCQs
    Class 12 Chemistry Chapter 19 MCQs
    2nd Year Chemistry Chapter 19 MCQs

    1. pH value of soil is maintained at ___________ by the addition of fertilizer for optimum growth and health of the plant

    a) 44385

    b) 44230

    c) 44291

    d) 44543

    Answer: a) 44385


    2. The chemical that kills weeds is called pesticides

    a) TRUE

    b) FALSE

    Answer: a) TRUE


    3. Soap and detergents are the source of organic pollutants like:

    a) Sulphonated hydrocarbons

    b) Polyphosphates

    c) Glycerol

    d) All of the above

    Answer: d) All of the above


    4. What are the polymers called whose monomers are bonded to each other by -C(O)-N—C(O)-N-link

    a) Polyesters

    b) Polythene

    c) Polyamides

    d) Terylene

    Answer: c) Polyamides


    5. Of the following, which one is classified as a polyamide

    a) Polythene

    b) Nylon

    c) Polystyrene

    d) All of the above

    Answer: b) Nylon


    6. What will be the product formed when benzene -1, 4-dicarboxylic acid and ethan-1 ,2-diol react together

    a) Polyester and terylene

    b) Polyster

    c) Polyamides

    d) Terylene

     Answer: a) Polyester and terylene


    7. In order to produce silk threads, silkworms digest ________ from mulberry trees.

    a) Leaves

    b) Twigs

    c) Cellulose

    d) Proteins

    Answer: c) Cellulose


    8. Some plastics become soft on heating and become hard upon cooling and never show change in their properties are known as _________.

    a) Thermoplastic

    b) thermosetting

    c) thermoregulation

    d) thermodynamic

    Answer: a) Thermoplastic


    Conclusion

    The topic of this post is class 12 chemistry chapter 19 MCQs with solved answers for board exam preparation Additionally we add this post into the 12th class category.

  • Class 12 Chemistry Chapter 18 MCQs – Chemistry of Life

    Class 12 Chemistry Chapter 18 MCQs – Chemistry of Life

    Here we are going to provide class 12 Chemistry chapter 18 Chemistry of Life solved MCQs that help Sindh board students in their exam.

    12th Class Chemistry Chapter 18 MCQs with Answers

    This 2nd year’s chemistry chapter 18 Sindh board MCQs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

    Also Look:

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    Class 12 Chemistry Chapter 18 MCQs
    2nd Year Chemistry Chapter 18 MCQs

    1. Brain needs ________ as a source of energy

    a) Protein

    b) Starch

    c) Maltose

    d) Glucose

    Answer: d) Glucose


    2. The glucose is polymerized to form _________

    a) Starch

    b) Cellulose

    c) Cellulose

    d) Starch and cellulose

    Answer: d) Starch and cellulose


    3. Which one of the following are amorphous solid

    a) Glucose

    b) Monosaccharides

    c) Oligosaccharides

    d) Polysaccharides

    Answer: d) Polysaccharides


    4. Glucose is

    a) Hexahydroxy aldehyde

    b) Hexahydroxy ketone

    c) Pentahydroxy aldehyde

    d) Pentahydroxy ketone

    Answer: c) Pentahydroxy aldehyde


    5. The amino acid that contains methyl group as the alkyl part is known as _______

    a) Aspartic acid

    b) Alanine

    c) Glycine

    d) None of these

    Answer: b) Alanine


    6. Which of the following is the simplest amino acid

    a) Aspartic acid

    b) Alanine

    c) Glycine

    d) None of these

    Answer: c) Glycine


    7. Strecker synthesis is used to synthesize ___________.

    a) amides

    b) amino acids

    c) acetylene

    d) benzene

    Answer: b) amino acids


    8. Amino acids which cannot be synthesized in body

    a) Non-essentials

    b) Proteins

    c) Essentials

    d) Amino acids

    Answer: c) Essentials


    9. Gelatin protein is found in

    a) Blood

    b) Skin

    c) Heart

    d) Bones

    Answer: d) Bones


    10. Number of amino acids in protein is.

    a) 1000

    b) Less than 10,000

    c) More than 10,000

    d) 2000

    Answer: c) More than 10,000


    11. Peptide bond is formed by the elimination of which molecule

    a) H2O

    b) H3O

    c) H3CO3

    d) HNO3

    Answer: a) H2O


    12. Rancid butter has foul smell because of ________ acid

    a) Sulphuric acid

    b) Nitric acid

    c) Hydrochloric acid

    d) Butanoic acid

    Answer: d) Butanoic acid


    13. At which temperature margarine is produced by adding hydrogen in vegetable oil

    a) 100

    b) 150

    c) 200

    d) 250

    Answer: c) 200


    14. Molecular formula of palmitic acid is

    a) C15H31COOH

    b) C17H35COOH

    c) C5H30COOH

    d) C10H22011

    Answer: a) C15H31COOH


    15. Identify the fat-soluble vitamins

    a) ADEK

    b) ADBC

    c) BC

    d) BCEK

    Answer: a) ADEK


    16. Which vitamin is soluble in water

    a) Vitamin A

    b) Vitamin E

    c) Vitamin D

    d) Vitamin C

    Answer: d) Vitamin C


    17. Who proposed the name of vitamins

    a) Lewis

    b) J. Watson

    c) F. Crick

    d) Funk

    Answer: d) Funk


    18. Cause of night blindness is

    a) Deficiency of Vitamin B

    b) Deficiency of Vitamin C

    c) Deficiency of Vitamin D

    d) Deficiency of Vitamin A

    Answer: d) Deficiency of Vitamin A


    Conclusion

    The topic of this post is class 12 chemistry chapter 18 MCQs with solved answers for board exam preparation Additionally we add this post into the 12th class category where students can find more related content.

  • Class 12 Chemistry Chapter 17 MCQs – Carbon Compounds with Oxide

    Class 12 Chemistry Chapter 17 MCQs – Carbon Compounds with Oxide

    Here you can prepare class 12 chemistry chapter 17 Carbon compounds with oxide MCQs with answers that help Sindh board students in their exams.

    12 Class Chemistry Chapter 17 MCQs with Answers

    This 2nd year’s chemistry chapter 17 Sindh board MCQs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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    2nd Year Chemistry Chapter 15 MCQs
    2nd Year Chemistry Chapter 16 MCQs
    Class 12 Chemistry Chapter 17 MCQs
    2nd Year Chemistry Chapter 17 MCQs

    1. The solubilities of higher alcohols decrease because they tend to resemble:

    a) Sugars

    b) Glucose

    c) Aldehydes

    d) Hydrocarbons

    Answer: d) Hydrocarbons


    2. Alcohol obtained by fermentation never exceeds:

    a) 0.14

    b) 0.1

    c) 0.16

    d) 0.95

    Answer: a) 0.14


    3. Rectified spirit contains alcohol about:

    a) 0.8

    b) 0.85

    c) 0.9

    d) 0.95

    Answer: d) 0.95


    4. Ethyl alcohol when treated with con sulphuric acid may give:

    a) Diethyl ether

    b) Diethyl sulphate

    c) Ethylene

    d) All of the above

    Answer: d) All of the above


    5. Alcoholic fermentation is brought about by

    a) CaCl

    b) CO2

    c) Yeast

    d) NaCl

    Answer: c) Yeast


    6. Reaction of aqueous sodium hydroxide on chlorobenzene gives which of the following products

    a) o-chlorophenol

    b) o-chlorophenol

    c) phenol

    d) no reaction

    Answer: c) phenol


    7. On heating aqueous solution of benzene diazonium chloride, which of the following is formed

    a) benzene

    b) chlorobenzene

    c) phenol

    d) aniline

    Answer: c) phenol


    8. Which of the following is not a method for preparation of phenol

    a) Dows process

    b) From diazonium salt

    c) By decarboxylation of salicylic acid

    d) By the decarboxylation of sodium benzoate

    Answer: d) By the decarboxylation of sodium benzoate


    9. What is the commercial method of preparation of phenol

    a) Dows process

    b) From diazonium salt

    c) By decarboxylation of salicylic acid

    d) Hock method

    Answer: d) Hock method


    10. What is the reagent which will react with cumene to give phenol

    a) Oxygen

    b) Hydrogen

    c) Nitrogen

    d) Ozone

    Answer: a) Oxygen


    11. What are the products when tert-butyl ethyl ether is cleaved with concentrated HI

    a) Iodoethane and tert-butanol

    b) iodoethane and 2-iodo-2-methylpropane

    c) ethanol and 2-iodo-2-methylpropane

    d) ethanol and tert-butanol

    Answer: c) ethanol and 2-iodo-2-methylpropane


    12. Benzoic acid reacts with conHNO3 and conH2SO4 to give

    a) o-nitrobenzoic acid

    b) p-nitrobenzoic acid

    c) m-nitrobenzoic acid

    d) o, p-dinitro benzoic acid

    Answer: c) m-nitrobenzoic acid


    13. A new C-C bond formation is possible in

    a) Cannizzaro reaction

    b) Friedel crafts reaction

    c) clemmensen reduction

    d) reimer tiemann reaction

    Answer: b) Friedel crafts reaction


    14. Under Wolff-Kishner reduction conditions, the conversions which may be brought about are

    a) cyclohexanone into cyclohexane

    b) benzaldehyde into benzyl alcohol

    c) cyclohexanone into cyclohexanol

    d) benzophenone into diphenylmethane

    Answer: a) cyclohexanone into cyclohexane


    Conclusion

    The topic of this post is class 12 chemistry chapter 17 MCQs with solved answers for board exam preparation.

  • Class 12 Chemistry Chapter 16 MCQs – Alkyl Halides

    Class 12 Chemistry Chapter 16 MCQs – Alkyl Halides

    Here you can prepare class 12 chemistry chapter 16 Alkyl Halides solved MCQs that help Sindh board students in their exam.

    12 Class Chemistry Chapter 16 MCQs with Answers

    This 2nd year’s chemistry chapter 16 Sindh board MCQs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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    12th Class Chapter 15 MCQs
    Class 12 Chemistry Chapter 16 MCQs
    2nd Year Chemistry Chapter 16 MCQs

    1. C-Cl bond of chlorobenzene in comparison to C-Cl bond in methyl chloride is:

    a) Longer and weaker

    b) Shorter and weaker

    c) Shorter and stronger

    d) Longer and stronger

    Answer: c) Shorter and stronger


    2. A Grignard reagent may be made by reacting magnesium with:

    a) Methyl amine

    b) Diethyl ether

    c) Ethyl iodide

    d) Ethyl alcohol

    Answer: c) Ethyl iodide


    3. Phosgene is commonly known as:

    a) thionyl chloride

    b) carbonyl chloride

    c) carbon dioxide and phosphine

    d) phosphoryl chloride

    Answer: b) carbonyl chloride


    4. Arenes are polar:

    a) TRUE

    b) FALSE

    Answer: b) FALSE


    5. Which among these is not a representative arene compound

    a) Durene

    b) Picric chloride

    c) Aspirin

    d) Mesitylene

    Answer: b) Picric chloride


    6. The main sources of these arenes are ________

    a) Petroleum

    b) Biogas and petroleum

    c) Petroleum and coal tar

    d) Natural gas

    Answer: c) Petroleum and coal tar


    7. Arenes does not undergo __________

    a) Dehydrogenation

    b) Coupling reaction

    c) Halogenation

    d) Cyclo additions

    Answer: a) Dehydrogenation


    8. Which of the following is not the method of preparation of alkyl halide

    a) Darzen’s method

    b) Halogenation of alkene

    c) Addition of HX on alkenes

    d) Hydration of alkene

    Answer: d) Hydration of alkene


    Conclusion

    The topic of this post is class 12 chemistry chapter 16 MCQs with solved answers for board exam preparation that helps Sindh board students.

  • Class 12 Chemistry Chapter 15 MCQs – Chemistry of Hydrocarbons

    Class 12 Chemistry Chapter 15 MCQs – Chemistry of Hydrocarbons

    Here we are going to provide class 12 Chemistry chapter 15 Chemistry of Hydrocarbons solved online MCQs that help Sindh board students in their exams.

    12 Class Chemistry Chapter 15 MCQs with Answers

    This 2nd year’s chemistry chapter 15 Sindh board MCQs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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    2nd YEAR Chemistry Chapter 15 MCQs
    Class 12 Chemistry Chapter 15 MCQs

    1. The solubilities of higher alcohols decrease because they tend to resemble:

    a) Sugars

    b) Glucose

    c) Aldehydes

    d) Hydrocarbons

    Answer: d) Hydrocarbons


    2. A hydrocarbon in which the chain of carbon atoms is not cyclic is called the open chain hydrocarbon:

    a) TRUE

    b) FALSE

    Answer: a) TRUE


    3. Which among the following alkynes is used as a rocket fuel

    a) Ethyne

    b) Propyne

    c) But-1-yne

    d) Pent-1-yne

    Answer: b) Propyne


    4. The product of Friedel-Crafts Acylation reactions is ______

    a) Alkylbenzene

    b) Alkylamine

    c) Arylketone

    d) Halobenzene

    Answer: c) Arylketone


    5. Which of the following is the most acidic

    a) p-nitrophenol

    b) 2,4,6-trinitrophenol

    c) p-cresol

    d) Phenol

    Answer: b) 2,4,6-trinitrophenol


    6. Aromatic bromination catalyzed by the Lewis acid acetate gives __________.

    a) Para isomer

    b) Ortho isomer

    c) Meta isomer

    d) Para and ortho isomer

    Answer: a) Para isomer


    7. When phenyl methyl ether reacts with HI it forms:

    a) benzene

    b) ethyl chloride

    c) iodobenzene

    d) phenol

    Answer: d) phenol


    8. Which of the following act as electrophile in halogenation

    a) Nitronium ion

    b) Sulphonium ion

    c) Halonium ion

    d) Acylium ion

    Answer: c) Halonium ion


    Conclusion

    The topic of this post is class 12 chemistry chapter 15 MCQs with solved answers for board exam preparation Additionally we added this post into the 12th class mcqs category.

  • Class 12 Chemistry Chapter 14 MCQs – Introduction to Organic Chemistry

    Class 12 Chemistry Chapter 14 MCQs – Introduction to Organic Chemistry

    Here we are going to provide class 12 Chemistry chapter 14 Introduction to Organic Chemistry solved MCQs that help Sindh board students in their exams.

    12 Class Chemistry Chapter 14 MCQs with Answers

    This 2nd year’s chemistry chapter 14 Sindh board MCQs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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    2nd Year Chemistry Chapter 14 MCQs with Answers

    1. Petroleum is refined by:

    a) Destructive distillation

    b) Fractional distillation

    c) Simple distillation

    d) Dry distillation

    Answer: b) Fractional distillation


    2. Conversion of wood into coal is:

    a) Catenation

    b) Fraction

    c) Carbonization

    d) Distillation

    Answer: c) Carbonization


    3. Main component of natural gas is:

    a) Methane

    b) Propane

    c) Butane

    d) Propene

    Answer: a) Methane


    4. Which one of the following is hardest coal:

    a) Peat

    b) Lignite

    c) Bituminous

    d) Anthracite

    Answer: d) Anthracite


    5. Natural gas is 85% methane. It is used to make the following except:

    a) Carbon black

    b) Coke

    c) Coal tar

    d) Coal gas

    Answer: c) Coal tar


    6. Which one of the following is fraction of crude oil:

    a) Paraffin wax

    b) Asphalt

    c) Fuel oil

    d) Petroleum coke

    Answer: c) Fuel oil


    7. Crude oil is heated in the fractionating furnace up to:

    a) 300oC

    b) 350oC

    c) 400oC

    d) 450oC

    Answer: c) 400oC


    8. Which one of the following is used as jet fuel:

    a) Kerosene oil

    b) Lubricating oil

    c) Fuel oil

    d) Diesel oil

    Answer: a) Kerosene oil


    9. Which one of the following organic compounds is found is gasoline

    a) C2H4

    b) C3H8

    c) C8H18

    d) C12H26

    Answer: c) C8H18


    10. When propene reacts with HBr in the presence of peroxide, it gives rise to

    a) allyl bromide

    b) isopropyl bromide

    c) n-propyl bromide

    d) 3-bromopropane

    Answer: c) n-propyl bromide


    11. Identify the addition reaction which is not undergone by the alkenes

    a) Mercuration

    b) Oxymercuration

    c) Hydroboration

    d) Halogenation

    Answer: a) Mercuration


    12. In Alkenes the Carbon atoms are connected to each other by a ______

    a) Single bond

    b) Double bond

    c) Triple bond

    d) Not connected

    Answer: b) Double bond


    13. Baeyer’s reagent is used to detect:

    a) glucose

    b) double bonds

    c) oxidation

    d) reduction

    Answer: b) double bonds


    14. Which among the following is not colorless

    a) Methene

    b) Ethene

    c) Propene

    d) Butene

    Answer: b) Ethene


    15. How many structural isomers are possible if one hydrogen in diphenylmethane is replaced by chlorine

    a) 8

    b) 4

    c) 7

    d) 6

    Answer: b) 4


    16. Which is the best-suited method for the separation of para and ortho-nitrophenols from 1:1 mixture

    a) crystallization

    b) chromatography

    c) sublimation

    d) steam distillation

    Answer: d) steam distillation


    17. Which of the following methods is best suited for the separation of a mixture containing naphthalene and benzoic acid

    a) Crystallization

    b) Chromatography

    c) Sublimation

    d) Distillation

    Answer: c) Sublimation


    18. The rate of reaction of organic compounds is slow due to:

    a) ionic bonding

    b) amphoteric nature

    c) covalent bonding

    d) coordinate covalent bonding

    Answer: c) covalent bonding


    19. Isomers with similar groups on the same side are called as “trans” isomers.

    a) TRUE

    b) FALSE

    Answer: b) FALSE


    Conclusion

    The topic of this post is class 12 chemistry chapter 14 mcqs with solved answers that will be beneficial for students in board exam preparations.

  • Class 12 Chemistry Chapter 13 Solved MCQs – D Block Elements

    Class 12 Chemistry Chapter 13 Solved MCQs – D Block Elements

    Here we are going to provide class 12 chemistry chapter 13 D-Block Element solved MCQs that help Sindh board students in their exam.

    12 Class Chemistry Chapter 13 MCQs with Answers

    This 2nd year’s chemistry chapter 13 Sindh board MCQs with Answers are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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    1. Quartz in investment material is added for _______

    a) Strength

    b) Expansion components for casting shrinkage

    c) Decrease strength

    d) Contraction

    Answer: b) Expansion components for casting shrinkage


    2. Raw materials used for manufacture of glass are ________

    a) Sand/charcoal/soda

    b) Sand/soda/limestone

    c) Limestone/charcoal/Sulphur

    d) Sand/Sulphur/soda

    Answer: b) Sand/soda/limestone


    3. Which of the following is used for silvering of mirrors

    a) Silver nitrate

    b) Zinc nitrate

    c) Silver oxide

    d) Pitch blends

    Answer: a) Silver nitrate


    4. Which carbohydrate can be used for silvering of mirror:

    a) Glucose

    b) Fructose

    c) Maltose

    d) All of the above

    Answer: a) Glucose


    5. Gold content of an 18-carat alloy is _________

    a) 0.25

    b) 0.5

    c) 0.75

    d) 1

    Answer: c) 0.75


    6. Among the following reactions, the fastest rate is for:

    a) Precipitation of silver chloride by mixing silver nitrate and sodium chloride solutions

    b) Conversion of monoclinic Sulphur to rhombic Sulphur

    c) Burning of charcoal

    d) Rusting of iron in moist air

    Answer: a) Precipitation of silver chloride by mixing silver nitrate and sodium chloride solutions


    7. Aqueous ammoniacal silver nitrate solution is called _________.

    a) Benedict’s reagent

    b) Nessler’s reagent

    c) Tollen’s reagent

    d) Fehling’s reagent

    Answer: c) Tollen’s reagent


    8. The most common example of corrosion is:

    a) Chemical decay

    b) Rusting of iron

    c) Rusting of tin

    d) Rusting of aluminum

    Answer: b) Rusting of iron


    9. ____________ is depositing one metal over the other by means of electrolysis.

    a) Greasing

    b) Alloying

    c) Staining

    d) Electroplating

    Answer: d) Electroplating


    10. _________ is a homogenous mixture of one metal with one or more other metals or non-metals

    a) Greasing

    b) Alloying

    c) Staining

    d) Painting

    Answer: b) Alloying


    11. Corrosion resistant metals are _________.

    a) Zn

    b) Sn

    c) Cr

    d) All of the above

    Answer: d) All of the above


    12. The formula of rust is:

    a) Fe2O3nH2O

    b) Fe2O3

    c) Fe (OH)3nH2O

    d) Fe2O2

    Answer: a) Fe2O3nH2O


    13. Coating a glass plate with silver is called silvering of mirror.

    a) TRUE

    b) FALSE

    Answer: a) TRUE


    14. Silvering of mirror can also be carried out by spraying method.

    a) TRUE

    b) FALSE

    Answer: a) TRUE


    Conclusion

    The topic of this post is class 12 chemistry chapter 13 mcqs with solved answers that help students for board exam preparation.

  • Class 12 Chemistry Chapter 12 MCQs – P Block Element

    Class 12 Chemistry Chapter 12 MCQs – P Block Element

    Here we are going to provide class 12 chemistry chapter 12 P-Block Element solved MCQs that help Sindh board students in their exam.

    12 Class Chemistry Chapter 12 MCQs with Answers

    This 2nd year’s chemistry chapter 12 Sindh board MCQs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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    1. Basicity of boric acid, H3BO3 is:

    a) 2

    b) 3

    c) 4

    d) 5

    Answer: a) 2


    2. When boric acid H3BO3 is heated, the residue left is:

    a) Metaboric acid

    b) Boric anhydride

    c) Boron

    d) Borax

    Answer: b) Boric anhydride


    3. Graphite is an inert electrode. When the electrolysis of aqueous solution of NaCl is carried out by using graphite electrode, then the substance collected at the cathode is:

    a) Hydrogen gas

    b) Sodium metal

    c) Sodium hydroxide

    d) Chlorine gas

    Answer: a) Hydrogen gas


    4. Which of the following elements has lowest ionization energy

    a) Beryllium

    b) Boron

    c) Carbon

    d) Oxygen

    Answer: b) Boron


    5. Which order is the correct one for the size of atoms

    a) Mg>Sr

    b) Ba>Mg

    c) Lu>Ce

    d) Cl>1

    Answer: b) Ba>Mg


    6. Which element has lowest melting point

    a) Beryllium

    b) Magnesium

    c) Calcium

    d) Barium

    Answer: b) Magnesium


    7. The element of 2nd period, which has ionization energy from the following is:

    a) Be

    b) C

    c) N

    d) O

    Answer: c) N


    8. Which one is not a periodic property:

    a) Ionization energy

    b) Density

    c) Atomic Radii

    d) Hydration energy

    Answer: b) Density


    9. __________ is very reactive, poisonous and waxy soft solid.

    a) red phosphorus

    b) white phosphorous

    c) green phosphorous

    d) blue phosphorous

    Answer: b) white phosphorous


    10. The existence of an element in more than one form in a same physical state is called ____

    a) amorphous

    b) allotropy

    c) crystalline solids

    d) none of the above

    Answer: b) allotropy


    11. Transition temperature of Sulphur is _______.

    a) 46 oC

    b) 6 oC

    c) 96 oC

    d) 86 oC

    Answer: c) 96 oC


    12. Sn grey exists in _____ shape.

    a) tetragonal

    b) cubic

    c) hexagonal

    d) none of the above

    Answer: b) cubic


    13. The arrangement of atoms in allotropic form changes with change in _______.

    a) pressure

    b) volume

    c) density

    d) temperature

    Answer: d) temperature


    14. Which catalyst is used in the contact process

    a) Fe2O3

    b) V2O5

    c) SO3

    d) Ag2O

    Answer: b) V2O5


    15. Which compound gives carbon when heated with con H2SO4

    a) Starch

    b) Ethyl alcohol

    c) Oxalic acid

    d) Formic acid

    Answer: a) Starch


    16. SO3 is not absorbed in water directly to form H2SO4 because:

    a) The reaction does not go to completion

    b) The reaction is quite slow

    c) The reaction is exothermic

    d) SO3 is insoluble in water

    Answer: c) The reaction is exothermic


    17. The incorrect statement about H2SO4 is:

    a) Sulphonating agent

    b) Highly viscous

    c) Reducing agent

    d) Hydrating

    Answer: c) Reducing agent


    18. H2SO4 has great affinity for water because:

    a) It decomposes the acid

    b) It hydrolyses the acid

    c) Acid decomposes water

    d) Acid forms hydrate with water

    Answer: d) Acid forms hydrate with water


    Conclusion

    The topic of this post is class 12 chemistry chapter 12 mcqs with solved answers for board exam preparation. Also, we added this post to the 12th class category.

  • Class 12 Chemistry Chapter 11 MCQs – S Block Element

    Class 12 Chemistry Chapter 11 MCQs – S Block Element

    Here you can prepare class 12 chemistry chapter 11 s block element solved mcqs that helps Sindh board students in their exam.

    Also Like:

    12 Class Chemistry Chapter 11 MCQs with Answers

    This 2nd-year chemistry chapter 11 Sindh board mcqs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

    Class 12 Chemistry Chapter 11 Solved MCQs
    Class 12 Chemistry Chapter 11 MCQs

    1. Which element has lowest melting point:

    a) Beryllium

    b) Magnesium

    c) Calcium

    d) Barium

    Answer: b) Magnesium


    2. Which of the following elements has lowest ionization energy

    a) Beryllium

    b) Boron

    c) Carbon

    d) Oxygen

    Answer: b) Boron


    3. Which order is the correct one for the size of atoms

    a) Mg>Sr

    b) Ba>Mg

    c) Lu>Ce

    d) Cl>1

    Answer: b) Ba>Mg


    4. Which one is not a periodic property:

    a) Ionization energy

    b) Density

    c) Atomic Radii

    d) Hydration energy

    Answer: b) Density


    5. The element of 2nd period, which has ionization energy from the following is:

    a) Be

    b) C

    c) N

    d) O

    Answer: c) N


    6. Which of the following is known as ‘baking soda’

    a) Na2CO3 x 10H2O

    b) NaHCO3

    c) K2CO3

    d) NaOH

    Answer: b) NaHCO3


    7. Lithium exhibits diagonal relationship with:

    a) Magnesium

    b) Calcium

    c) Aluminium

    d) Strontium

    Answer: a) Magnesium


    8. As compared to K, Na has:

    a) higher ionization potential

    b) lower melting point

    c) lower electronegatively

    d) larger atomic radius

    Answer: a) higher ionization potential


    9. Which of the following is not the minerals of potassium

    a) Chile saltpeter

    b) Carnallite

    c) Kainite

    d) Potassium feldspar

    Answer: a) Chile saltpeter


    10. Which oxide is amphoteric

    a) BaO

    b) CaO

    c) BeO

    d) MgO

    Answer: c) BeO


    Conclusion

    The topic of this post is class 12 chemistry chapter 11 mcqs with solved answers for board exam preparation additionally we add this post into the 12th class category.