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`pH` of water is `7`. When a substance `Y` is dissolved in water, the `pH` becomes `13`. The substance `Y` is a salt of
A. Strong acid and strong base
B. Weak acid and weak base
C. Strong acid and weak base
D. Weak acid and strong base

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Correct Answer - D
If we mixed any substance into the solution, them the value of `pH` is increased these sustances are salts of weak acid and strong base.

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