MHT CET 2026 Chemistry question

Which of the following contains maximum number of molecules

(A)0.4 g H gas
(B)3.2 g. of O gas
(C)16.8 dm of H gas at STPCorrect
(D)11.2 dm of O gas at STP

Answer: (C)

Solution

The number of molecules is proportional to the number of moles, , so find for each option. (A) mol. (B) mol. (C) At STP 1 mol of any gas occupies 22.4 dm, so mol. (D)

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Question ID VK-097705