Q67 / 180 · NEET 2014 · Chemistry

Which of the following salts will give highest $p H$ in water?

A
$K C l$
B
$N a C l$
Correct answer
C
$N a_{2} C O_{3}$
D
$C u S O_{4}$

Solution

N a_{2} C O_{3}

is basic due to hydrolysis of

C O_{3}^{2 -}

ion

C O_{3}^{2 -} + H_{2} O ⇌ H C O_{3}^{-} + O H^{-}

Hence, the correct answer is option: 'C'.

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