Assertion: Ammonium hydroxide is Weak Base Reason: Phenolphthalein becomes pink in NH4OH Read the statements carefully and choose the correct alternative from the following: *1 point
(a) both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
(b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) The statement of the Assertion is false but the Reason is true.

Dear Student,
Ammonium hydroxide is a weak base because it does not dissociate completely into ions.Hence from this statement we can say that assertion is true.

Since Ammonium Hydroxide is a base so phenolphthalein will turn pink. Phenolphthalein is often used as an indicator and it turns colourless in acidic solutions and pink in basic solutions. Hence we can say that Reason is also correct
Hence Assertion and Reason both are correct and reason is the correct explanation of the assertion.
So answer is option A
Regards
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