Regarding 0.1 grams of hydrogen, true statement is

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It is equal to 0.025 moles

It occupies 2.24 litres at STP

It contains 6.02×1022 atoms

It is equal to 0.05 gram atoms

answer is C.

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Detailed Solution

2 grams of H2 =one gram atom =0.5 moles; 0.1 grams of H2 =0.1 gram atoms =0.05 moles ; It occupies 1.12 litres at STP ; It contains NA10 atoms

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