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1
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
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
JEE Main 2021 (Online) 27th July Morning Shift Chemistry - Basics of Organic Chemistry Question 45 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
3
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
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 46 English
A
(D) > (C) > (B) > (A)
B
(C) > (D) > (A) > (B)
C
(C) > (B) > (A) > (D)
D
(A) > (B) > (C) > (D)
4
JEE Main 2021 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which among the following is the strongest acid ?
A
$$C{H_3}C{H_2}C{H_2}C{H_3}$$
B
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Basics of Organic Chemistry Question 47 English Option 2
C
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Basics of Organic Chemistry Question 47 English Option 3
D
JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Basics of Organic Chemistry Question 47 English Option 4
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