Q.

Which of the following are correct expressions.        

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a

Volume of 1 mole of gas = 2.24 L at STP

b

1 mole of substance = GMW of the substance

c

For homo atomic molecules GMW = Atomicity × GAW

d

For hetero atomic molecules GMW = Atomicity × GAW

answer is A, B.

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Detailed Solution

 For hetro atomic molecules GMW = Sum of gram atomic weights of the all constituent

atoms.  1 mole of gas=22.4 L of S.T.P.

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