1000+ Stoichiometry MCQ Questions and Answers Pdf - 1

Question: 1

Which of the following has the smallest least effect on the solubility of a solute into the solvent?

(A) pressure

(B) temperature

(C) nature of the solvent

(D) nature of the solute

Question: 2

The heat capacity of a substance is

(A) equal for solid and liquid states below melting point

(B) higher for solid state than for liquid state

(C) lower for liquid state than for gaseous state

(D) greater for liquid state than for solid state

Question: 3

In a chemical process, the recycle stream is purged for

(A) heat conservation

(B) limiting the inerts

(C) enriching the product

(D) increasing the product yield

Question: 4

Heat of transition is the heat evolved or absorbed, when a substance is converted from

(A) one allotropic form to another allotropic form

(B) solid to liquid

(C) vapor to solid

(D) vapor to liquid

Question: 5

The latest heat of vaporization

(A) becomes zero at the critical point

(B) decreases with increased temperature

(C) decreases as pressure increases

(D) all a, b and c