MEDIUM
Earn 100

Which of the following electrophile is not a Lewis acid?
(a)
(b)
(c)
(d)

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques
HARD
What will be the correct nucleophilicity order in protic or aprotic solvents?

EASY
Which among the following is a set of nucleophiles?

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Given below are two statements :
Statement I : and both can generate nucleophile.
Statement II : and both will generate nitrile nucleophile with all reaction conditions.
Choose the most appropriate option :

EASY
In an reaction, the group that leaves the substrate is called a leaving group. The ease of departure of leaving group is determined on the basis of acidity of the conjugate acid of the leaving group. The stronger the conjugate acid, the better is the leaving group. The compound having the best leaving group is

EASY
Which of the following statements is not correct for a nucleophile?

MEDIUM
The correct order of nucleophilicity is

EASY
The indicated atom is not a nucleophilic site in

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In which of the following compounds, the bond ionization shall give most stable carbonium ion?

EASY
In electrophilic aromatic substitution reactions of chlorobenzene, the ortho/para-directing ability of chlorine is due to its

EASY
The correct statement regarding electrophiles is:

EASY
The order of stability of the following carbocations:


HARD
The major products and in the following reactions are

HARD
A solution of in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :

EASY
For the following reaction, identify the carbonyl compound that shows the highest reactivity.

EASY
Consider the following compounds

Hyperconjugation occurs in:

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In which of the following molecules, all atoms are coplanar?

EASY
In pyrrole, the electron density is maximum on


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The increasing order of nucleophilicity of the following nucleophiles is;


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Define ambident nucleophile with an example.

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The correct sequence of reagents for the following conversion will be


