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Q.

Statement (A) : Gram formula mass of Calcium hydroxide is 74.1 grams 

Statement (B) : Gram molecular mass of Calcium carbonate is 106 grams 

Statement (C) : Gram molecular mass of water is 18 grams

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a

A and B are correct but C is incorrect

b

All the above statements are incorrect

c

All the above statements are correct

d

A and B are incorrect but C is correct

answer is A.

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Detailed Solution

MW of q mole Ca(OH)2=1×Ca+2×0+2×H

=1×40+2×16+2×1

=74

GMW of 1 mole CaOH2=74g

CaCO3=1×Ca+1×C+3×0

=1×40+1×12+3×16

=18

GMW of 1 mole H2O=18g

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