Q.

The empirical formula of an organic compound  is (CH2O)n. The mass of 1 lit of this organic compound in vapour state  is exactly equal to the mass of 1 lit of NO at STP. The molecular formula of organic compound is 

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a

(C2H2O)1

b

(C2HO)1

c

(CHO2)1

d

(CH2O)1

answer is A.

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Detailed Solution

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mass of 1 lit of NO and organic compound is same indicating that molar mass of both are also same. Molar mass of organic compound = 30

n = molar mass emprical mass=3030=1

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