Q.

An aqueous solution of sodium carbonate has a pH greater than 7 because

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a

It contains more carbonate ions than H2O molecules

b

It contains more hydroxide ions than carbonate ions

c

Na+ ions react with water

d

Carbonate ions react withNa+

answer is B.

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Detailed Solution

pH > 7 = BasicIt means it contains more hydroxide ions than carbonate ions.
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