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Question

0.44 g of a colourless oxide of nitrogen occupies 224 mL at STP. The compound is

A
N2O
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B
NO
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C
N2O2
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D
NO2
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Solution

The correct option is A N2O
1 mole of any substance occupies 22400 ml
So,
224 ml of substance has 0.44 g mass 22400 ml
0.44224×22400
44g
Molecular mass
N2O=14×2+16
=44 g.

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