1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its unit cells.

Reason (R) : In an ionic solid, Frankel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Both (A) and (R) are correct and (R) is the correct explanation of (A)
B
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
C
(A) is correct but (R) is not correct
D
(A) is not correct but (R) is correct
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

Given below are two statements

Statement I : The boiling points of the following hydrides of group 16 elements increases in the order -

H2O < H2S < H2Se < H2Te

Statement II : The boiling points of these hydrides increase with increase in molar mass.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct but Statement II is incorrect
D
Statement I is incorrect but Statement II is correct
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

The given graph is a representation of kinetics of a reaction

NEET 2022 Phase 1 Chemistry - Chemical Kinetics Question 6 English

The y and x axes for zero and first order reactions, respectively are

A
zero order (y = concentration and x = time), first order (y = t1/2 and x = concentration)
B
zero order (y = concentration and x = time), first order (y = rate constant and x = concentration)
C
zero order (y = rate and x = concentration), first order (y = t1/2 and x = concentration)
D
zero order (y = rate and x = concentration), first order (y = rate and x = t1/2)
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

The incorrect statement regarding chirality is

A
SN1 reaction yields 1 : 1 mixture of both enantiomers
B
The product obtained by SN2 reaction of haloalkane having chirality at the reactive site shows inversion of configuration
C
Enantiomers are superimposable mirror images on each other
D
A racemic mixture shows zero optical rotation
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