0.44g of a colourless oxide of nitrogen occupies 224mL 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 AN2O 1mole of any substance occupies 22400ml So, 224ml of substance has 0.44g mass 22400ml 0.44224×22400 ⇒44g Molecular mass N2O=14×2+16 =44g.