Amongst the following the compound that can most readily get sulphonated is

• benzene

• toluene

• nitrobenzene

• chlorobenzene

+I effect is shown by

• -CH₃

• -Br

• -Cl

• -NO₂

Inductive effect involves:

• displacement of σ-electrons

• delocalisation of π-electrons

• delocalisation of σ-electrons

• displacement of π-electrons

How many chiral carbon atoms are present in 2, 3, 4-trichloropentane?

• 4

• 1

• 2

• 3

Which one of the following shows functional isomerism?

• C₂H₄

• C₃H₆

• C₂H₅OH

• CH₂Cl₂

Dalda is prepared from oils by

• oxidation

• reduction

• hydrolysis

• distillation

Geometrical isomerism is shown by

• -C - C-

• > C = C <

• -C ≡ C - 

• None of these

Presence of halogen in organic compounds can be detected using

• Leibig's test

• Duma's test

• Kjeldahl test

• Beilstien's test

219.

Which of the following species does not exert a resonance effect?

• C₆H₅NH₂

• ${\mathrm{C}}_6{\mathrm{H}}_5\stackrel{+}{\mathrm{N}}{\mathrm{H}}_3$

• C₆H₅OH

• C₆H₅Cl

How many optically active stereomers are possible for butan-2,3-diol?

• 1

• 2

• 3

• 4