pH of water is 7. When a substance Y is ...

pH of water is 7. When a substance Y is dissolved in water, the pH becomes 11. The substance Y is a salt of :-

A

Weak acid and weak base

B

Strong acid and strong base

C

Strong acid and weak base

D

Weak acid and strong base

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The correct Answer is:

D

pH of water because the II.have salt is basic
`therefore` The salt of weak acid and strong base.

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