(i)CH3CH3 + Cl2→CH3CH2Cl+HCl (ii)CH3CH(OH)CH→CH3CH=CH2+H2O (iii)CH3CHO+HCN→CH3CH(OH)CN (iv)CH3CH=CH2+HBr→CH3CHBrCH3 (v)CH3CH2C(OH)=CH2→CH3CH2COCH3 State the reaction type?

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Answer 1 · 2015-08-12T23:14:41

These are examples of five different reaction types.

(i) ${CH}_{3} {CH}_{3} + {Cl}_{2} \to {CH}_{3} {CH}_{2} Cl + HCl$ $"CH"_3"CH"_3 + "Cl"_2 → "CH"_3"CH"_2"Cl" + "HCl"$

This is a free radical substitution reaction.

(ii) ${CH}_{3} {CH(OH)CH}_{3} \to {CH}_{3} {CH=CH}_{2} + H_{2} O$ $"CH"_3"CH(OH)CH"_3 → "CH"_3"CH=CH"_2 + "H"_2"O"$

This is a dehydration or elimination reaction.

(iii) ${CH}_{3} CHO + HCN \to {CH}_{3} CH(OH)CN$ $"CH"_3"CHO" + "HCN" → "CH"_3"CH(OH)CN"$

This is a nucleophilic addition reaction.

(iv) ${CH}_{3} {CH=CH}_{2} + HBr \to {CH}_{3} {CHBrCH}_{3}$ $"CH"_3"CH=CH"_2 + "HBr" → "CH"_3"CHBrCH"_3$

This is an electrophilic addition reaction.

(v) ${CH}_{3} {CH}_{2} {C(OH)=CH}_{2} ⇌ {CH}_{3} {CH}_{2} {COCH}_{3}$ $"CH"_3"CH"_2"C(OH)=CH"_2 ⇌ "CH"_3"CH"_2"COCH"_3$

This is an example of keto-enol tautomerism.