Sawaal
2
Q:

Which of the following is not soluble in water?

A) sodium chloride B) potassium sulfate
C) copper(II) hydroxide D) silver nitrate

Answer:   B) potassium sulfate



Explanation:

We know that,

All nitrates are soluble in water.

All chlorides are soluble in water with the exception of those formed with silver , lead , mercury ions as all halides are soluble.

Sulphates are soluble in water.

Hydroxides are not soluble in water.

 

Hence, copper(II) hydroxide is not soluble in water.

Subject: Chemistry
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