Hydrocarbons · Chemistry · KCET

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MCQ (Single Correct Answer)

1
Statement I: Staggered conformation of ethane is more stable than the eclipsed conformation.
Statement II: The torsional strain in staggered conformation is more.
Read the above statements and choose the correct answer from the options given below.
KCET 2026
2

The major product formed when $1-$ Bromo $-3-$ Chlorocyclobutane reacts with metallic sodium in dry ether is

KCET 2025
3

Sodium ethanoate on heating with soda lime gives ' $X^{\prime}$. Electrolysis of aqueous solution of sodium ethanoate gives ' $Y^{\prime}$. ' $X^{\prime}$ and ' $Y^{\prime}$ respectively are

KCET 2024
4

But-1-yne on reaction with dil. $\mathrm{H}_2 \mathrm{SO}_4$ in presence of $\mathrm{Hg}^{2+}$ ions at 333 K gives

KCET 2024
5

2-methyl propane can be prepared by Wurtz reaction. The haloalkanes taken along with metallic sodium and dry ether are :

KCET 2024
6

In the given sequence of reactions, identify ' $P^{\prime}, Q^{\prime}, R^{\prime}$ and ' $S$ respectively.

KCET 2024 Chemistry - Hydrocarbons Question 9 English

KCET 2024
7

Identify, A and B in the following reaction

KCET 2022 Chemistry - Hydrocarbons Question 15 English

KCET 2022
8

Identify 'X' in the following reaction.

KCET 2020 Chemistry - Hydrocarbons Question 14 English

KCET 2020
9

The number of $$\pi$$-bonds and $$\sigma$$-bonds present in naphthalene are respectively

KCET 2019
10

2-butyne is reduced to trans-but-2-ene using

KCET 2019
11

The alkyl halides required to prepare KCET 2019 Chemistry - Hydrocarbons Question 13 Englishby Wurtz reaction are

KCET 2019
12

The reagent $X$ used for the following reaction is

KCET 2018 Chemistry - Hydrocarbons Question 4 English
KCET 2018
13
$n$-propyl chloride reacts with sodium metal in dry ether to give
KCET 2018
14
When the vapours of tertiary butyl alcohol are passed through heated copper at 573 K , the product formed is
KCET 2018
15
For the preparation of alkanes, aqueous solution of sodium of potassium salt of carboxylic acid is subjected to
KCET 2017