Chemical… | NUST Entrance Test Chemistry

A reaction is reversible because:

Difficulty: Easy

A:

Products are stable

B:

Reactants are reactive

C:

Products are reactive

D:

Reactants are stable

What happens when a reaction is at equilibrium and more reactants is added:

Difficulty: Easy

A:

Forward reaction rate is increased.

B:

Forward reaction rate is decreased.

C:

Backward reaction rate is increased.

D:

Equilibrium remains unchanged.

The rate of a chemical reaction is directly proportional to product of molar concentration of reacting substance.It is called:

Difficulty: Easy

A:

Law of conservation of energy

B:

Law of mass action

C:

Rate law

D:

Active mass rule

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