Practice Pakistan's most useful MCQs for competitive exams

Which of the following is an example of liquid in gas solution?

• (A)  Opals
• (B)  Dust particles in smoke
• (C)  Paints
• (D)  Fog

Answer

Submitted By :Ali Uppal

Which of the following substance do not show continuous solubility curve ?

• (A)  KCIO4
• (B)  Na2SO4. 10H2O
• (C)  K2Cr2O7
• (D)  PbCl2

Answer

Submitted By :Ali Uppal

Which has the minimum freezing point ?

• (A)  One Molal NaCI
• (B)  One molal KCI solution
• (C)  One molal CaCI2
• (D)  One molal urea solution

Answer

Submitted By :Ali Uppal

The molal boiling point constant is the ration of the elevation of boiling point to____________________?

• (A)  Molarity
• (B)  Molality
• (C)  More fraction of solvent
• (D)  Mole fraction of solute

Answer

Submitted By :Ali Uppal

Which of the following unit of concentration is independent of temperature ?

• (A)  Molarity
• (B)  Molality
• (C)  Mole fraction
• (D)  all

Answer

Submitted By :Ali Uppal

Which one of the following salt does not hydrolyzed________________?

• (A)  Na2SO4
• (B)  AlCl3
• (C)  CuSO4
• (D)  NH4Cl

Answer

Submitted By :Ali Uppal

Water of crystallization can be removed by________________?

• (A)  drying
• (B)  heating
• (C)  evaporation
• (D)  All of the above

Answer

Submitted By :Ali Uppal

1 molar solution of glucose in water contains weight of glucose________________?

• (A)  180g/dm3
• (B)  170g/dm3
• (C)  190g/dm3
• (D)  195g/dm3

Answer

Submitted By :Ali Uppal

Solution of Na2SO4 will be_________________?

• (A)  basic
• (B)  acidic
• (C)  neutral
• (D)  cannot be presicted without data

Answer

Submitted By :Ali Uppal

The compounds in which water molecules are added are called_______________?

• (A)  Hydrated ions
• (B)  double salts
• (C)  hydrates
• (D)  complexes

Answer

Submitted By :Ali Uppal