Category: Class 12

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

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.

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.

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12th Chemistry Chapter 17 MCQs

12th Chemistry Chapter 16 MCQs

12th Chemistry Chapter 15 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.

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

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2nd Year Chemistry Chapter 16 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.

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

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.

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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12 Class Chemistry Chapter 13 MCQs

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.

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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12th Class Chemistry Chapter 12 MCQs

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.

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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Class 12 Chapter 11 S-Block Element MCQs

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 2^nd 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.

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

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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.

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 2^nd 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.

Here we are going to provide class 12 chemistry chapter 10 hydrogen solved mcqs that helps Sindh board students in their exam.

12 Class Chemistry Chapter 10 MCQs with Answers

This 2nd year’s chemistry chapter 10 Sindh board mcqs are also helpful for Karachi, Hyderabad, Larkana, and Sukkur board students in their examination preparation.

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12th Class Chemistry Chapter 9 MCQs

1. What is the other name of partial oxidation

a) Oxidation

b) Oxygen reduction

c) Oxygen reforming

d) None of the mentioned

Answer: c) Oxygen reforming

---

2. Hydrogen can be produced from hydrocarbon by which method

a) Thermal decomposition

b) Partial oxidation

c) Steam reforming

d) All of the mentioned

Answer: d) All of the mentioned

---

3. Which is the best method for petroleum hydrogenation

a) Thermal decomposition

b) Steam reforming

c) Partial oxidation

d) Catalytic reforming

Answer: b) Steam reforming

---

4. Which type of reaction is catalytic reaction

a) Endothermic

b) Exothermic

c) Neutral

d) None of the mentioned

Answer: a) Endothermic

---

5. During cracking of Natural gas, what is produced

a) Carbon

b) Hydrogen

c) Both C and H₂

d) None of the mentioned

Answer: c) Both C and H₂

---

6. Chlorine has _______ isotopes.

a) 1

b) 2

c) 3

d) 4

Answer: b) 2

---

7. __________ are defined as atoms of an element that have the same atomic number but different mass numbers.

a) Mole

b) Isotopes

c) Molecules

d) None of the above

Answer: b) Isotopes

---

8. Hydrogen has ________ isotopes.

a) 4

b) 2

c) 3

d) 1

Answer: c) 3

---

9. The U92238 is found in nature nearly _________.

a) 90% pure

b) Impure

c) 99% pure

d) Not present

Answer: c) 99% pure

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10. Isotopes of uranium are:

a) U92239, U92238

b) U92234, U92235, U92238

c) U92236, U92237

d) None of the above

Answer: b) U92234, U92235, U92238

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Conclusion

The topic of this post is class 12 chemistry chapter 10 MCQs with answers for board exam preparation additionally we add this post into the 12th class category.