which is not correct?

Options

A. Phenol is more acidic than acetic acid
B. Ethanol is less acidic than phenol
C. Ethanol has lower boiling point than ethane
D. Ethyne is a non-linear molecules

Explanation

Phenols are much more acidic than alcohols but less so than carboxylic acids or even carbonic acid. This is indicated by the values fo ionisation constants. The relative acidity follows the order:
Ethanol has higher boiling point due to hydrogen bonding. Ethyne has linear shape due to sp-hybridisation .
`K_(a)underset(RCOOH)(10^(-5))gt underset(H_(2)CO_(3))(10^(-7))gt underset(C_(6)H_(5)OH)(10^(-10))gt underset(HOH)(10^(-14))gt underset(ROH)(10^(-18))`