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1

JEE Main 2021 (Online) 27th August Evening Shift

MCQ (Single Correct Answer)
The compound/s which will show significant intermolecular H-bonding is/are :

A
(b) only
B
(c) only
C
(a) and (b) only
D
(a), (b) and (c)

Explanation

(a) Shows intra molecular H-bonding

(b) Shows significant intermolecular H-bonding

(c) It do not show intermolecular H-bonding due to steric hindrance.
2

JEE Main 2021 (Online) 26th August Evening Shift

MCQ (Single Correct Answer)
The number of stereoisomers possible for 1, 2-dimethyl cyclopropane is :
A
One
B
Four
C
Two
D
Three

Explanation

3

JEE Main 2021 (Online) 26th August Evening Shift

MCQ (Single Correct Answer)
Which one of the following compounds is not aromatic?
A
B
C
D

Explanation

4

JEE Main 2021 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)
Given below are two statements :

Statement I : Hyperconjugation is a permanent effect.

Statement II : Hyperconjugation in ethyl cation $$\left( {C{H_3} - \mathop C\limits^ + {H_2}} \right)$$ involves the overlapping of $${C_{s{p^2}}} - {H_{1s}}$$ bond with empty 2p orbital of other carbon.

Choose the correct option :
A
Both statement I and statement II are false
B
Statement I is incorrect but statement II is true
C
Statement I is correct but statement II is false
D
Both statement I and statement II are true.

Explanation

Statement I : It is correct statement

Statement II : $$C{H_3} - \mathop {C{H_2}}\limits^ \oplus $$ involve $${C_{s{p^3}}} - {H_{1s}}$$ bond with empty 2p orbital hence given statement is false.

Questions Asked from Basics of Organic Chemistry

On those following papers in MCQ (Single Correct Answer)
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JEE Main 2022 (Online) 24th June Morning Shift [ Memory Based ] (1)
JEE Main 2021 (Online) 31st August Evening Shift (1)
JEE Main 2021 (Online) 31st August Morning Shift (1)
JEE Main 2021 (Online) 27th August Evening Shift (1)
JEE Main 2021 (Online) 26th August Evening Shift (2)
JEE Main 2021 (Online) 27th July Evening Shift (1)
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