Fluorine has the highest electronegativity among the `ns^(2) np^(5)` group on the Pauling scale, but the elctron affinity of fluorine is less than that of chlorine because `:`

Options

A. `C_(2)H_(8)O_(2)`
B. `C_(4)H_(8)O_(2)`
C. `C_(4)H_(10)O`
D. `C_(4)H_(12)O_(2)`

Answer

4

Explanation

Empirical formula `=C_(2)H_(6)O`
Empirical mass `=12xx2+16+6=46`
and molecular mass `=2xx` vapour density `=2xx46=92`
Therefore, `" "n=("Molecular mass")/("Empirical mass") " "rArr" "n=(92)/(46)=2`
Molecular formula `=(C_(2)H_(5)O)xx2`
Molecular formula`=C_(4)H_(12)O_(2)`.