Q.

1 gm each of each of the gas is taken. Identify the pair containing same number of molecules?

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a

CO and C2H6

b

H2S and NH3

c

CO2 and NO2

d

C2H6 and NO

answer is B.

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Detailed Solution

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number of molecules = number of moles x NA

mass and molar mass of gases are same number of moles is same and number of molecules is also same

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