Organic Chemistry – Some Basic Principles and Techniques

Which one of the following compounds will have the highest dipole moment?

Which one of the following has the highest nucleophilicity?

• OH^-

• CH${}_3^{-}$

• NH${}_2^{-}$

• F^-

Which of the following compounds will exhibit geometrical isomerism?

• 3-phenyl-1-butene

• 2-phenyl-1-butene

• 1, 1-diphenyl-1-proene

• 1-phenyl-2-butane

Which of the following compounds is insoluble even in hot concentrated H₂SO₄?

• Benzene

• Hexane

• Aniline

• Ethylene

Which of the following is a meso-compoud?

• cis-1, 3-dimethylcyclohexane

• trans-1, 3-dimethylcyclohexane

• cis-1, 4-dimehylcyclohexane

• trans-1, 4-dimethylcyclohexane

The correct IUPAC name of following compound 

• 2-methyl–5-nitro-1-chlorobenzene

• 2-chloro–1-methyl-4-nitrobenzene

• 5-chloro–4–methyl–1–nitrobenzene

• 3-chloro–4–methyl–1–nitrobenzene

The principle of Column Chromatography is

• Capillary action

• Differential absorption of the substances on the solid phase

• Differential absorption of the substances on the phase

• Gravation force

Which of the these factors does not govern the stability of a conformation in acyclic compounds:

• Torsional strain

• Steric interaction

• Electrostatic forces of interaction

• Angle strain

In chromatography, which of the following statements is INCORRECT for R_f ?

• R_f value depends on the type of chromatography

• R_f value is dependent on the mobile phase.

• Higher R_f value means higher adsoption

• The value of R_f can not be more than more.

Number of stereo centers present in linear and cyclic structures of glucose are respectively

• 5 & 5

• 4 & 4

• 5 & 4

• 4 & 5