300+ TOP MCQs on Alkene and Answers

NEET  Chemistry is the very imporatant paper in the Medical Entrance EXAM. So these NEET Chemistry MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Chemistry objective questions on air pollution. NEET Chemistry Alkene Multiple Choice Questions

MCQs on Alkene :

1. Which of the following compounds react most readily with Br_(g)?
(A) C₂H₂
(B) C₃H₆
(C) C₂H₄
(D) C₄H₁₀

Answer

Answer: (d)

2. 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

Answer: (d)

3. Find the alkene with maximum stability
(A) cis-2-Butene
(B) trans-2-Butene
(C) 1-Butene
(D) All have the same stability

Answer

Answer: (d)

4. Ethylene bromide on treatment with Zn gives
(A) Alkyne
(B) Alkene
(C) Alkane
(D) All of the above

Answer

Answer: (d)

5. Which of the following reactions is common in alkenes?
(A) Addition
(B) Elimination
(C) Substitution
(D) Superposition

Answer

Answer: (d)

6. Cis-trans isomerism in alkenes is due to
(A) chiral carbon
(B) free rotation about single bond
(C) free rotation about double bond
(D) restricted rotation about double bond

Answer

Answer: (d)

7. Baeyer’s reagent is used to detect
(A) glucose
(B) double bonds
(C) oxidation
(D) reduction

Answer

Answer: (d)

8. Which of the following will form 2 acetaldehyde molecules on ozonolysis?
(A) 1-pentene
(B) 2-pentene
(C) 1-butene
(D) 2-butene

Answer

Answer: (d)

9. Which of the following reagents will form 1-propanol from propene?
(A) B₂H₆, H₂O₂, OH^–
(B) Aq. KOH
(C) H₂O, H₂SO₄
(D) Hg(OAc)₂, NaBH₄/H₂O

Answer

Answer: (d)

10. Geometrical isomerism is exhibited by
(A) 2-Butene
(B) 2-Butyne
(C) 2-Butenol
(D) Butanol

Answer

Answer: (d)