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This question belongs to Civil Engineering Environmental Engineering

Environmental Engineering

?

Which of the following chemical compounds can be used for de-chlorination of water?

A) Carbon dioxide B) Bleaching powder C) Sulphur dioxide D) Chloramines

Answer & Solution

Correct Answer: Option C

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Question posted by Examveda

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1 Comment

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Shamin Muth 5 years ago

Sulfur dioxide (SO2) rapidly dissolves in water to form a weak solution of sulfurous acid (H2SO3) which dissociates to produce sulfite ions (SO3)2-, which are the active dechlorinating agents.

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Which of the following chemical compounds can be used for de-chlorination...

Which of the following chemical compounds can be used for de-chlorination of water?

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