Question
Thu July 26, 2012 By: Nilesh Raikar
 

Two organic compounds ‘X’ and ‘Y’ containing carbon and hydrogen anly have vapour densities 13 and 39 respectively.State the molecular formula of ‘X’ and ‘Y’.

Expert Reply
Thu July 26, 2012
Molecular weight = 2 x vapor density
Molecular wt of Compund X = 2 x 13 = 26
As it contains only C and H, molecular weight 26 will comprise = C2H2
 
Molecular wt of Compund Y = 2 x 39 = 78
As it contains only C and H, molecular weight 78 will comprise 
 
= C6H6
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