Question

(i) Give IUPAC names for following compounds: a. HO–CH₂–CH₂–COOH b. CH₃–CHBr–CH₂–CH₃ c. CH₃–CH=CH–COOH (ii) Account for the following: a) Toluene is o,p directing. b. Propene is more stable than ethene.

a) Out of benzene, m–dinitrobenzene and toluene which will undergo nitration most easily and why? b) Draw resonating structures of chlorobenzene using arrow to show Resonance effect in it.

(i) Give reason for following a) Ethyne is more acidic than ethene b) Nitration of Toluene give ortho and para nitro toluene but not m-Nitro toluene (ii) Complete the following equation CH3CH(Cl)-CH2-CH3 with AlcKOH → (iii) Give a chemical test to distinguish the following pairs: (a) Ethene and Ethyne (b) Ethene and Ethane