
Introduction to Stoichiometry
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Hard
Ajaz UOB
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider the reaction:
A + B --> C + D
A and B in this reaction are called:
feed components
output components
reactants
products
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider the reaction:
A + 2B --> 3C + D
Which of these ratios is correct?
2 moles B consumed
1 mole C generated
1 mole A generated
1 mole D consumed
2 moles B consumed
1 mole A consumed
3 moles C consumed
1 mole A generated
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The limiting reactant in a reaction is the reactant:
which has less number of moles
which is more important for getting the products
which is completely consumed if reaction proceeds to completion
which is of limiting importance in the reaction
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The excess reactant in a reaction is the reactant which is:
going to come out of the reactor
supplied in more amounts than the stoichiometric proportions
having a greater number of moles
not used in the reaction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The reaction: Na2SO4 + β HCl → 2NaCl + H2SO4
can be balanced when β is equal to
0
1
2
0.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the reaction:
2H2 + O2 → 2H2O
If 320 g of O2 is used in the reaction, then the grams of H2O produced is:
160
320
360
640
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
C4H8 + 6O2 → 4CO2 + 4H2O
In the reaction, the stoichiometric coefficient of CO2 is:
1
4
4/6
1/4
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