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6 moles of Al reacts with HCl to give how many grams of H2? A. 18gm B. 9gm C. 12gm D. 6gm

6 moles of Al reacts with HCl to give how many grams of H2? 
A. 18gm
B. 9gm
C. 12gm
D. 6gm

Grade:12th pass

1 Answers

Rajat
213 Points
4 years ago
Balanced eqn is
Al+ 3HCl --> AlCl3 +3/2 H2
So 6 moles of Al gives 6(3/2)= 9 moles of H2.
Which is 9×2 = 18 gram of H2

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