A) \[{{C}_{2}}{{H}_{4}}{{O}_{2}}\]
B) \[{{C}_{2}}{{H}_{6}}O\]
C) \[{{C}_{2}}{{H}_{6}}{{O}_{2}}\]
D) \[{{C}_{2}}{{H}_{4}}O\]
Correct Answer: A
Solution :
\[2\times \]vapour density = molecular weight \[2\times 30=60\] \[\therefore \] Molecular weight of compound = 60 (Empirical formula) \[\times n=\] molecular formula \[(12+1\times 2+16)\times n=60\] \[\therefore \]\[n=2\] so, \[(C{{H}_{2}}O)\times 2=\] molecular formula \[\therefore \]Molecular formula \[={{C}_{2}}{{H}_{4}}{{O}_{2}}\]
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