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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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.
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