NCERT Exemplar III — task. Science CBSE, Class 9.

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Answer the following multiple choice questions:

1. Which of the following would weigh the highest?

2 moles of \(CaCO_3\)
10 moles of \(H_2\)
0.2 mole of sucrose (\(C_1{_2}H_2{_2}O_1{_1}\))
2 moles of \(CO_2\)

2. Which of the following has maximum number of atoms?

18g of \(H_2\)
18g of \(CH_4\)
18g of \(O_2\)
18g of \(CO_2\)

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