Question

A chloride dissolves in water to form a colored solution. The chloride could be

(1) HCl (2)KCl (3)CaCl2 (4)NiCl2

Answer 1

The chloride is NiCl2, which forms a green solution.

Answer 2

The correct answer is option (4) NiCl2

Step-by-step explanation:

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Nickel Chloride (NiCl2) is a compound (a salt) that when dissolved in water, a greenish yellow solution remains.

The other three salts: Hydrogen Chloride, Calcium Dichloride and Potassium Chloride are salts that do not form colored solutions.

Therefore, we can conclude that the correct answer is option (4) NiCl2