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Question

A negatively charged suspension of clay in water will need for precipitation the minimum amount of


A
Aluminium chloride
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B
Potassium sulphate
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C
Sodium hydroxide
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D
Hydrochloric acid
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Solution

The correct option is A Aluminium chloride


A negatively charged clay suspension in water can be precipitated by minimum amount of Al3+(AlCl3) because Al3+ ions have maximum opposite charge, i.e., + 3 units.


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