NEET Chemistry Hydrogen Questions Solved


1000 g aqueous solution of CaCO3 contains 10g of calcium carbonate. Hardness of the solution is:

(a) 10 ppm

(b) 100 pm

(c) 1000 ppm

(d) 10000 ppm

(d) Hardness is expressed in g of CaCO3 present in 106g of H2O.

Difficulty Level:

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