A) 1 mole of oxygen
B) 1 molecule of sulphur trioxide
C) 100 u of uranium
D) 10 moles of hydrogen
E) 44 g of carbon dioxide
Correct Answer: E
Solution :
The weight of one mole of oxygen = 16 g Weight of one molecule of \[S{{O}_{3}}=80\times 6\times {{10}^{-23}}g\] Weight of 100 u of uranium \[=100\times 1.66\times {{10}^{-24}}g\] Weight of 10 moles of hydrogen = 10 g Weight of \[C{{O}_{2}}=44\,g\] Hence, 44 g of \[C{{O}_{2}}\] is the heaviest among these.
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