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Question

Four one litre flasks are separately filled with the gases, O2,F2,CH4 and CO2 under the same conditions. The ratio of number of molecules in these gases:

A
2 : 2 : 4 : 3
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B
1 : 1 : 1 : 1
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C
1 : 2 : 3 : 4
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D
2 : 2 : 3 : 4
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Solution

The correct option is B 1 : 1 : 1 : 1
Here all the compounds are given in gaseous state.
For gases the number of molecules per 22.4 liter is 6.023×1023 despite the different molecular masses.
So, the number of molecular per 1 liter of each gases (O2,F2,CH4, and CO2) would be same.

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