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  • Which of the following sulphides is only completely precipitated when the acidic solution is made dilute?Option: 1 HgS<div class='

Which of the following sulphides is only completely precipitated when the acidic solution is made dilute?

Option: 1

HgS


Option: 2

PbS


Option: 3

CdS


Option: 4

CuS


Answers (1)

best_answer

As we have learnt,

Cd^{2+} does not completely precipitate with H_2S in concentrated solutions.

The precipitation is completed when acidic solution is diluted.

Hence, the correct answer is Option (3)

Posted by

Ritika Jonwal

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