2g of hydrogen is present in a closed vessel at S.T.P. If the same quantity of another gas 'x' when introduced into the vessel the pressure becomes 1.5 atm. The gas 'x' would be
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a
CH4
b
SO2
c
He
d
O2
answer is C.
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Detailed Solution
P1n1=P2n2 ⇒11=0.52x 1=0.5×x2 x=4 g Molecular wt of 'x' gas=4 =He gas
2g of hydrogen is present in a closed vessel at S.T.P. If the same quantity of another gas 'x' when introduced into the vessel the pressure becomes 1.5 atm. The gas 'x' would be