Chemical Equations and Stoichiometry NEET Questions

Physical Chemistry - Some Basic Concepts of Chemistry

Chemical Equations and Stoichiometry MCQ Questions


1.
Which of the following is an example of a synthesis reaction?
A.
H₂ + O₂ → H₂O
B.
C + O₂ → CO₂
C.
NaCl → Na + Cl₂
D.
HCl + NaOH → NaCl + H₂O
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ANSWER :
A. H₂ + O₂ → H₂O
2.
How many moles of NaCl are produced when 2 moles of Na react with Cl₂?
A.
1 mole
B.
2 moles
C.
3 moles
D.
4 moles
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ANSWER :
B. 2 moles
3.
What is the molecular weight of H₂SO₄?
A.
96 g/mol
B.
98 g/mol
C.
100 g/mol
D.
102 g/mol
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ANSWER :
B. 98 g/mol
4.
If 4 moles of NH₃ react with 3 moles of O₂, how many moles of NO are formed?
A.
2 moles
B.
4 moles
C.
3 moles
D.
1 mole
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ANSWER :
B. 4 moles
5.
In the reaction 2KClO₃ → 2KCl + 3O₂, what is the mole ratio of KClO₃ to O₂?
A.
1:1
B.
2:3
C.
3:2
D.
2:1
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ANSWER :
B. 2:3
6.
The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber’s process is:

NEET - 2023

A.
10
B.
20
C.
30
D.
40
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ANSWER :
C. 30