The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : -

The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : -
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The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : - A. ` ... `1 : 2` C. `2 : 3` D. `3 : 1`
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