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Question

Statement 1: It is not safe to use hard water in industrial boilers.
Statement 2: Calcium carbonate is a good conductor of heat.


A
Statement 1 is correct but statement 2 is incorrect
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B
Statement 2 is correct but statement 1 is incorrect
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C
Both statement 1 and statement 2 are correct
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D
Both statement 1 and statement 2 are incorrect
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Solution

The correct option is A Statement 1 is correct but statement 2 is incorrect
Hard water might contain dissolved calcium bicarbonate. Calcium carbonate is deposited at the bottom of boilers and pipes as a result of boiling hard water. These CaCO3 deposits are bad conductors of heat. As more hard water is boiled, more deposits are formed. Thus, it requires more time to boil the water and could lead to a dangerous boiler blasts. So, it is not safe to use hard water in industrial boilers.

Chemistry

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