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Question
74
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8 moles of A were present in a system initially, and 24 moles of B are added to it, it undergoes the reaction 2A + 3B -> 4C + 5D, what are the number of moles of D produced?
1. 10 2. 20 3. 30 4. 40
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Question
75
:
10 moles of A were present in a system initially, and 8 moles of C are added to it, it undergoes the reaction 5A + 3C -> 4B, what are number of moles of B produced?
1. 4 2. 6 3. 8 4. 10
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Question
76
:
10 moles of A were present in a system initially, and 12 moles of C are added to it, it undergoes the reaction 2A + 3C -> 2B, what are number of moles of B produced?
1. 4 2. 5 3. 8 4. 12
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Question
77
:
There were 15 moles of a substance present initially in a system, 25 moles were added to it and a reaction occurred so that its moles are reduced by 50%, what are the final moles of a substance in the system?
1. 10 2. 15 3. 20 4. 40
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Question
78
:
There were 10 moles of a substance present initially in a system, 5 moles were added to it and a reaction occurred so that its moles are reduced by 20%, what are the final moles of a substance in the system?
1. 10 2. 12 3. 15 4. 18
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Question
79
:
10 moles of A were present in a system initially, and 10 moles of C are added to it, it follows the reaction 2A + C -> 5B, what is the number of moles of B produced?
1. 5 2. 10 3. 25 4. 50
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Question
80
:
10 moles of A were present in a system initially, and 10 moles are added to it, it follows the reaction 4A -> B, what are the number of moles of B produced?
1. 5 2. 10 3. 15 4. 20
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