JEE CHEMISTRY MCQ: HYDROGEN

1 Hard

1 of 1

Application +4 | -1

The hardness of a water sample (in terms of equivalents of

CaC{O_3})

containing

{10^{ - 3}}M\,CaS{O_4}

(Molar mass of

CaS{O_4} = 136\,\,g\,\,mo{l^{ - 1}})

View answer and explanation

Correct option: A

100 ppm

Option A (100 ppm) is correct because the hardness is calculated based on the molarity of

CaSO_4

and expressed as ppm of

CaCO_3

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