1.

Consider two chemical reactions. HCOOH_((l))+H_(2)SO_(4(l)) to CO_((g)) +H_(2)SO_(4). H_(2)O_((hq)) H_(2)C_(2)O_(4(l)) +H_(2)SO_(4(l))to CO_((g)) +CO_(2(g))+H_(2)SO_(4).H_(2)O_((hq)) Different mixtures HCOOH & H_(2)C_(2)O_(4) are taken & reacted with H_(2)SO_(4(l)) & gases produced are passed through KOH. select the option (s) in which correct combination of composition of mixture & percentage volume contraction on passing through KOH is mentioned.

Answer»

Molar RATIO HCOOH:`H_(2)C_(2)O_(4) = 1:1`
% VOLUME contraction `=100/3%`
Molar ratio HCOOH :`H_(2)C_(2)O_(4) =1:3`
% volume contraction `=300/7%`
Molar ratio HCOOH :`H_(2)C_(2)O_(4) =2:3`
% volume contraction `=300/8%`
Molar ratio HCOOH : `H_(2)C_(2)O_(4)=3:5`
% volume contraction `=1000/13 %`

Answer :ABC


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