The empirical formula of an organic compound containing carbon and hydrogen is $C H_{2}$ . The mass of one litre of $N_{2}$ is same as one litre of the organic gas. Therefore, the molecular formula for the organic gas is:

C_{2} H_{4}

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C_{3} H_{8}

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C_{4} H_{10}

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C H_{4}

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Solution

The correct option is A $C_{2} H_{4}$
As the molecular mass of $N_{2}$ is 28, the molecular mass of the gas should also be 28. $C H_{2}$ has the molecular mass of 14. Therefore, the the molecular formula of the organic gas should be $C_{2} H_{4}$ so as to make the molecular mass of 14*2 = 28.

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The empirical formula of an organic compound containing carbon and hydrogen is CH2. The mass of one litre of N2 is same as one litre of the organic gas. Therefore, the molecular formula for the organic gas is:

The correct option is A C2H4As the molecular mass of N2 is 28, the molecular mass of the gas should also be 28. CH2 has the molecular mass of 14. Therefore, the the molecular formula of the organic gas should be C2H4 so as to make the molecular mass of 14*2 = 28.

The empirical formula of an organic compound containing carbon and hydrogen is $C H_{2}$ . The mass of one litre of $N_{2}$ is same as one litre of the organic gas. Therefore, the molecular formula for the organic gas is:

The correct option is A $C_{2} H_{4}$
As the molecular mass of $N_{2}$ is 28, the molecular mass of the gas should also be 28. $C H_{2}$ has the molecular mass of 14. Therefore, the the molecular formula of the organic gas should be $C_{2} H_{4}$ so as to make the molecular mass of 14*2 = 28.