Explore topic-wise MCQs in Organic Chemistry.

This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

Can a linear molecule have aromaticity.

A. Yes
B. No
Answer» C.
Discussion
2.

Select the correct statement regarding the aromatic nitrogen molecule.

A. It is not hybridized
B. It is sp hybridized
C. It is sp2 hybridized
D. It is sp3 hybridized
Answer» D. It is sp3 hybridized
Discussion
3.

Aromatic rings do not have resonance structures.

A. False
B. True
Answer» B. True
Discussion
4.

Identify the incorrect statement regarding aromaticity.

A. It is the extra stability possessed by a molecule
B. p-orbitals must be planar and overlap
C. Cyclic delocalization takes place
D. It does not follow Huckel’s rule
Answer» E.
Discussion
5.

Stability sequence: primary carbocation > secondary carbocation > tertiary carbocation. Is this sequence correct?

A. Yes
B. No
Answer» C.
Discussion
6.

Identify the correct sequence with respect to Inductive effects.

A. CF3`> CH2F`> CHF2`> CF3`
B. CF3`> CHF2`> CH2F`> CH3`
C. CH3`> CH2F`> CHF2`> CF3`
D. CH3`> CHF2`> CH2F`v CF3`
Answer» C. CH3`> CH2F`> CHF2`> CF3`
Discussion
7.

Identify the correct sequence according to electronegativity.

A. F > NH2 > CH3 >OH`
B. NH2 `> F` >CH3` > OH`
C. NH2 `> OH` > CH3` > F`
D. F` > OH` > NH2` > CH3`
Answer» E.
Discussion
8.

Identify the false statement regarding resonance.

A. As the number of charges increases, the resonance forms gets more significant
B. Zero charge of resonance is the most significant one
C. Atoms with full octet resonance form are more stable when compared with the one with unfilled octet
D. Resonance is unstable in case of unfilled octet of nitrogen atom
Answer» B. Zero charge of resonance is the most significant one
Discussion
9.

Resonance forms are in equilibrium with each other.

A. True
B. False
Answer» C.
Discussion
10.

CAN_A_LINEAR_MOLECULE_HAVE_AROMATICITY??$

A. Yes
B. No
Answer» C.
Discussion
11.

Select_the_incorrect_statement:$

A. A resonance may sometimes cause sp3 atoms to become sp2 hybridized
B. Delocalizing one lone pair causes aromaticity
C. One lone pair will be counted as two pi electrons according to Huckel’s equation
D. Two sigma bonds make up a double bond
Answer» E.
Discussion
12.

Select the correct statement regarding the aromatic nitrogen molecul?

A. It is not hybridized
B. It is sp hybridized
C. It is sp2 hybridized
D. It is sp3 hybridized
Answer» D. It is sp3 hybridized
Discussion
13.

Aromatic rings do not have resonance structures. State true or false

A. False
B. True
Answer» B. True
Discussion
14.

Identify the incorrect statement regarding aromaticity

A. It is the extra stability possessed by a molecule
B. p-orbitals must be planar and overlap
C. Cyclic delocalization takes place
D. It does not follow Huckel’s rule
Answer» E.
Discussion
15.

Stability sequence: primary carbocation> secondary carbocation > tertiary carbocation.

A.
B. Yes
Answer» C.
Discussion
16.

Identify the correct sequence with respect to Inductive effects

A. CF3`> CH2F`> CHF2`> CF3`
B. CF3`> CHF2`> CH2F`> CH3`
C. CH3`> CH2F`> CHF2`> CF3`
D. CH3`> CHF2`> CH2F`v CF3`
Answer» C. CH3`> CH2F`> CHF2`> CF3`
Discussion
17.

Identify the correct sequence according to electronegativity

A. F> NH2> CH3>OH`
B. NH2`> F`>CH3`> OH`
C. NH2`>OH`> CH3`>F`
D. F`> OH`>NH2`>CH3`
Answer» E.
Discussion
18.

Identify the false statement regarding resonance

A. As the number of charges increases, the resonance forms gets more significant
B. Zero charge of resonance is the most significant one
C. Atoms with full octet resonance form are more stable when compared with the one with unfilled octet
D. Resonance is unstable in case of unfilled octet of nitrogen atom
Answer» B. Zero charge of resonance is the most significant one
Discussion
19.

Resonance forms are in equilibrium with each other. State true or false

A. True
B. False
Answer» C.
Discussion