1
CBSE 12th Chemistry Delhi Set 1 - 2024
MCQ (Single Correct Answer)
+1
-0

Assertion (A): Inversion of configuration is observed in $\mathrm{S}_{\mathrm{N}} 2$ reaction.

Reason (R): The reaction proceeds with the formation of carbocation.

A
Both Assertion (A) and Reason (R) are true and Reason ( $R$ ) is the correct explanation of the Assertion (A).
B
Both Assertion (A) and Reason (R) are true, but Reason ( $R$ ) is not the correct explanation of Assertion (A).
C
Assertion (A) is true, but Reason (R) is false.
D
Assertion (A) is false, but Reason (R) is true.
2
CBSE 12th Chemistry Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0

Which of the following molecules has a chiral centre correctly labelled with an asterisk (*) ?

A
$$\mathrm{CH}_3 \mathrm{C}^* \mathrm{HBrCH}_3$$
B
$$\mathrm{CH}_3 \mathrm{C}^* \mathrm{HClCH} \mathrm{CH}_2 \mathrm{Br}$$
C
$$\mathrm{HOCHC}^* \mathrm{H}(\mathrm{OH}) \mathrm{CH}_2 \mathrm{OH}$$
D
$$\mathrm{CH}_3 \mathrm{C}^* \mathrm{Br}_2 \mathrm{CH}_3$$
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12