1.

Which is not correct

Answer»

Phenol is more acidic than ACETIC acid
Ethanol is less acidic than phenol
Ethanol has lower BOILING point than ethane
Ethyne is a non-linear molecules

Solution :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))`


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