For a weak acid, the incorrect statement is:

its dissociation constant is low

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its

p K_{a}

is very low

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it is partially dissociated

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solution of its sodium salt is alkaline in water

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Solution

The correct option is B its $p K_{a}$ is very low

For a weak acid, value of $p K_{a}$ will be very high, but in case of strong acid value of $p K_{a}$ will be very low.

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