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200 ml of any gas at N.T.P. was heated w...

200 ml of any gas at N.T.P. was heated with tin. Tin got converted into stannous sulphide and hydrogen was left. This hydrogen when passed over hot CuO, produced 0.162 g of `H_(2)O`. If the vapour density of the gas is 17, find its formula.

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The correct Answer is:
`H_(2)S`
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