1
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
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.
2
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Staggered and eclipsed conformers of ethane are :
A
Polymers
B
Rotamers
C
Enantiomers
D
Mirror images
3
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
JEE Main 2021 (Online) 27th July Morning Shift Chemistry - Basics of Organic Chemistry Question 125 English
The correct order of stability of given carbocation is :
A
A > C > B > D
B
D > B > C > A
C
D > B > A > C
D
C > A > D > B
4
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct decreasing order of densities of the following compounds is :

JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Basics of Organic Chemistry Question 127 English
A
(D) > (C) > (B) > (A)
B
(C) > (D) > (A) > (B)
C
(C) > (B) > (A) > (D)
D
(A) > (B) > (C) > (D)
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