Match the reactions given in Column I with the reaction types in Column II.

Column I Column II
(i) CH_{2}=CH_{2}+H_{2}O\overset{H^{+}}{\rightarrow}CH_{3}CH_{2}OH (a) Hydrogenation
(ii) CH_{2}=CH_{2}+H_{2}\overset{Pd}{\rightarrow}CH_{3}-CH_{3} (b) Halogenation
(iii) CH_{2}=CH_{2}+Cl_{2}\rightarrow Cl-CH_{2}-CH_{2}-Cl (c) Polymerization
(iv) 3CH\equiv CH\xrightarrow[Heat]{Cu\; tube}C_{6}H_{6} (d) Hydration
  (e) Condensation



 

Answers (1)

(i) \rightarrow (d); (ii) \rightarrow (a); (iii) \rightarrow (b); (iv) \rightarrow (c)

Explanation:

(i) Hydration refers to the addition of water molecule

CH_{2}=CH_{2}+H_{2}O\overset{H^{+}}{\rightarrow}CH_{3}CH_{2}OH

(ii) Addition of H2 in the presence of a catalyst is called as Hydrogenation

CH_{2}=CH_{2}+H_{2}\overset{Pd}{\rightarrow}CH_{3}-CH_{3}

(iii) Addition of halogens means halogenation

CH_{2}=CH_{2}+Cl_{2}\rightarrow Cl-CH_{2}-CH_{2}-Cl

(iv) When a no. of smaller molecules come together to give one bigger molecule, it is known as polymerisation.

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