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Question

The stabilizer used in the preparation of colloidal sol of mercury and sulphur is:

A
an ammonium salt
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B
a citrate
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C
KOH
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D
both A and B
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Solution

The correct option is C both A and B

A colloidal solution of certain elements such as mercury and sulphur are obtained by passing their vapours through cold water containing a stabilizer ( an ammonium salt or a citrate).

Hence, the correct option is D

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