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Calgon is added to boiler water to prevent ___________

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+1 vote
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in Engineering Chemistry II by (789k points)
Calgon is added to boiler water to prevent ___________

(a) Foaming

(b) Sludge and scale formation

(c) Priming

(d) Corrosion

This question was addressed to me in an internship interview.

This intriguing question originated from Calgon Conditioning topic in section Water and its Treatment of Engineering Chemistry II

1 Answer

+1 vote
by (1.3m points)
Correct answer is (b) Sludge and scale formation

The best I can explain: Calgon is added to boiler water to prevent sludge and scale formation. Calgon prevents limescale build-up in washing machines all over the world to protect the heating element, pipes and drum of the machines.

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