Which of the following contains maximum number of molecules? (a) 1g CO2 (b) 1g N2 (c) 1g H2 (d) 1g CH4
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Soln:
Answer is (c) 1g H2
Note: NA = 6.023×1023
Explanation:
1 g of H2 = ½ x NA = 0.5 NA = 0.5 × 6.022 × 1023 = 3.011 × 1023
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