the maximum no. of molecules is present in-
(1) 15L of H2 gas at STP
(2) 5L of N2 gas at STP
(3) 0.5 g of H2 gas
(4) 10 g of O2 gas
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2. number is the answer
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1 is right
as 15 L of h2 gas at stp is more
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