An oxygen containing organic compound was found to contain 52% carbon and 13% of hydrogen. Its vapour density is 23. The compound reacts with sodium metal to liberate hydrogen. A functional isomer of this compound is

Options

A. Ethanol
B. Ethanal
C. Methoxy methane
D. Methoxy ethane

Answer

C

Explanation

`{:("Elements", %, "No. of moles", "Simple Ratio"), (C, 52,52//12=4.33, =2),(H, 13, 13//1=13, =6),(O, 35, 35//16=2.18,=1):}`
Empirical formula `= C_(2)H_(6)O`
Empirical formula mass `= 2 xx 12 + 6 xx 1 + 16 = 46`
Molecular formula mass `=2 xx 23 = 46`
Molecular formula `=C_(2)H_(6)O`
Alcohols liberate hydrogen on reaction with sodium metal `C_(2)H_(6)o -= C_(2)H_(5)OH`
The functional isomer of ethanol is methoxy methane.
`CH_(3)CH_(2)OH -= CH_(3)OCH_(3)`