Explore topic-wise MCQs in UPSEE.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.

1.

When diluting acid always add
A. water to acid
B. acid to water
C. can be both ways
D. acid cannot be diluted
Answer» C. can be both ways
Discussion
2.

Equilibrium constant can be used to determine equilibrium concentration of equilibrium mixture knowing the
A. Final concentration of products
B. Final concentration of reactants
C. Initial concentration of reactants
D. Initial concentration of products
Answer» D. Initial concentration of products
Discussion
3.

Term "active mass" shows concentration of reactants and products in
A. Mol.dm-3 for a dilute solution
B. Mol.cm-3 for a dilute solution
C. Mol.dm-3 for a concentrated solution
D. Mol.cm-3 for a concentrated solution
Answer» B. Mol.cm-3 for a dilute solution
Discussion
4.

Relationship by which values that relate amounts of products to reactants at equilibrium can be determined, is called
A. Law of conservation of mass
B. Law of chemical reactions
C. Law of mass action
D. Active mass
Answer» D. Active mass
Discussion
5.

Due to high concentration of reactants, rate of forward reaction is
A. lowest
B. moderate
C. highest
D. minimal
Answer» D. minimal
Discussion
6.

What percentage of ammonia is given after cooling equilibrium mixture by Haber process?
A. 20 percent
B. 33 percent
C. 100 percent
D. 98 percent
Answer» E.
Discussion
7.

 Which of following is correct representation for "active mass"?
A. ( )
B. { }
C. [ ]
D. Bar
Answer» D. Bar
Discussion
8.

Rate at which reaction proceeds is directly proportional to
A. Product of the active masses of products
B. Product of the active masses of reactants
C. Both A and B
D. None of these
Answer» C. Both A and B
Discussion
9.

What is representation of a reversible reaction?
A. Single arrow
B. Double arrows
C. Bar
D. None of these
Answer» C. Bar
Discussion
10.

 In equilibrium constant expression, concentration of products is taken in/on the
A. Right side
B. Left side
C. Numerator
D. Denominator
Answer» D. Denominator
Discussion