Due to steric hinderence, hyperconjugation and heat of hydrogenation, reactivity of alkenes can be shown as: H2C=CH2>R−CH=CH2>R−CH=CH−R>R2C=CH2>R2C=CHR>R2C=CR2. Related Theory The relative rates of hydrogenation decrease with the increase of steric hindrance. In order of stability of alkene, most stable the alkene slowly it gives the product.
Which one of the following alkenes will react faster with H_2 under catalytic hydrogenation conditions?
NEET UG 2005 — Chemistry Organic Chemistry
2005mcqmedium
Which one of the following alkenes will react faster with H2 under catalytic hydrogenation conditions?
Official previous-year question
Held on 30 Apr 2005 · Verified 9 Jul 2026.
Options
- A
- B
- C
- D
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Organic Chemistry in other years
More NEET UG Organic Chemistry questions
Which of the following is a reducing sugar?
2026easy
Markovnikov's rule is applicable to:
2026easy
Name the class of enzyme that usually catalyze the following reaction : $\mathrm{S}-\mathrm{G}+\mathrm{S}^{\#} \rightarrow \mathrm{~S}+\mathrm{S}^{\#}-\mathrm{G}$ Where, $G \rightarrow$ a group other than hydrogen $S \rightarrow$ a substrate $\mathrm{S}^{\#} \rightarrow$ another substrate
2025medium
Identify the suitable reagent for the following conversion 
2025medium
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : undergoes $\mathrm{S}_{\mathrm{N}} 2$ reaction faster than Reason (R) : Iodine is a better leaving group because of its large size. In the light of the above statements, choose the correct answer from the options given below :
2025easy
Other Chemistry topics for NEET UG
Keep practicing Organic Chemistry
Work through every NEET UG Organic Chemistry PYQ, year by year.