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Precipitation by ___________ is widely used method for treating hazardous waste.

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in Hazardous Waste Management by (63.0k points)
Precipitation by ___________ is widely used method for treating hazardous waste.

(a) Calcium hydroxide

(b) Sodium hydroxide

(c) Potassium hydroxide

(d) Lead oxide

The question was asked in an online interview.

I'd like to ask this question from Chemical Treatment topic in portion Chemical, Physical & Biological Treatment of Hazardous Waste Management

1 Answer

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by (424k points)
Correct answer is (a) Calcium hydroxide

For explanation: Precipitation by calcium hydroxide is widely used method for treating hazardous waste. Addition of reagents cause reactions which precipitate undesired species.

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