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Q.

The density of a gas at STP is 1.5g/L. Its molecular weight is

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a

33.6 g

b

22.4 g

c

44.8 g

d

36.6 g

answer is B.

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Detailed Solution

Density of a gas at STP = 1.5g/lit

1.5g of a gas occupy 1 lit at STP

'X' of a gas occupy 22.4 lit at STP

\large X = \frac{22.4 \times 1.5}{1} = 33.6

 

 

 

Mw of gas = 33.6 g

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