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  • Match the items of Column I with items of Column II. Column I (i) Methanol Column II (a) Conversion of phenol to o-hydroxysalicylic acid

Match the items of Column I with items of Column II.

Column I Column II
(i) Methanol (a) Conversion of phenol to o-hydroxysalicylic acid
(ii) Kolbe's reaction (d) Ethyl alcohol
(iii) Williamson's synthesis (c) Conversion of phenol to salicyaldehyde
(iv) Conversion of 2o alcohol to ketone (d)

wood spirit
(v) Reimer-Tiemann reaction (e) Heated copper at 573 K
(vi) Fermentation (f) Reaction of alkyl halide with sodium alkoxide

 

Answers (1)

The right match options for column 1 are -                                                            

(i \rightarrow d), (ii \rightarrow a), (iii \rightarrow f), (iv \rightarrow e), (v \rightarrow c), (vi \rightarrow b)

(i) The destructive distillation method is used to produce methanol commonly known as 'wood spirit.'

(ii) When phenol reacts with CO_{2} gas, the reaction results in 2-hydroxy benzoic acid (salicylic acid). The name of the process is Kolbe's reaction.

(iii). Another important method of ether preparation of ether is Williamson's Synthesis. In this preparation method, an alkyl halide is made to react with sodium alkoxide.

R-X+R-ONa\rightarrow ROR+NaX

(iv) In this method, secondary alcohol passes over highly heated copper up to 573K; this results in dehydrogenation and formation of a ketone.

(v) An aldehyde group is introduced at the ortho position of the benzene ring when phenol is treated with chloroform in the presence of NaOH.

(vi) Preparation of ethanol is done via fermentation of sugars.

 

 

 

 

 

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