Q 1: The largest number of molecules is in: a. 28 g of CO b. 46 g of C 2 H 5 OH c. 36 g of H 2 O d. 54 g of N 2 O 5 Q 2: The number of molecules in 89.6 litre of a gas at NTP are: a. 6.02 × 10 23 b. 2 × 6.02 × 10 23 c. 3 × 6.02 × 10 23 d. 4 × 6.02 × 10 23 Q 3: The total number of protons in 10 g of calcium carbonate is: a. 3.0115 × 10 24 b. 1.5057 × 10 24 c. 2.0478 × 10 24 ...
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