Question

How many of the following compounds will give hydroxide ion(OH–) in aqueous solution.
NaOH, HCl, MgCl2, H3PO4, CH3COOH, Ca(OH)2, KOH

Answer 1

Answer:

NaOH , Ca(OH)2 and KOH

Explanation:

Because for bases hydroxide is used and the full form of these are:

1.NaOH-Sodium Hydroxide

2.Ca(OH)2-Calcium Hydroxide

3.KOH-Potassium Hydroxide

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Answer 2

answer is in the image

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