16 gm of O2 gas and x gm of H2 gas occupy the same volume at the same temperature and pressure. Then x is :
A
1/2gm
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B
1gm
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C
8gm
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D
16 gm
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Solution
The correct option is B 1gm Equal volume of gas contains equal number of moles. 16gm of oxygen = 0.5 mole. 1mole of hydrogen =2gm. 0.5mole of hydrogen = 1gm.