Free MCQs & Online Quiz Practice for Exams

Q: According to the Arrhenius concept which of the following is not an acid?

A) HCl

B) H₂SO₄

C) CO₂

D) HNO₃

Q: AlCl₃ is an acid according to which concept?

A) Arrhenius

B) Lowry and Bronsted

C) Lewis

D) All of these

Q: Which of the following is a Lewis base?

A) HCl

B) AlCl₃

C) BF₃

D) F-

Q: Neutral solution has a pH value of

A) 3

B) 5

C) 7

D) 14

Q: The pOH of 0.001 M solution of nitric acid is

A) 0.001

B) 10.0

C) 11

D) 14

Q: When a strong base and weak acid react the only products are

A) Neutral salt and water

B) Basic salt and water

C) Acidic salt and water

D) Acidic and basic salt and water

Q: NH₃ is a base according to which concept?

A) Arrhenius

B) Lowry and Bronsted

C) Lewis

D) Both b and c

Q: Which one of the following is a basic salt?

A) KCl

B) NaCl

C) Pb(OH)CL

D) KHSO₄

Q: The bases which are soluble in water are called

A) Acids

B) Alkalis

C) Salts

D) Amphoteric substances

Q: The example of weak acid is

A) HNO₃

B) CH₃COOH

C) HCl

D) H₂SO₄

Q: Froth flotation process is concentration of ore by

A) Magnetically

B) Difference in density

C) Wetting the ore

D) Chemically

Q: All are the raw materials for the manufacturing of soda ash except

A) Ammonia

B) Lime stone

C) Brine

D) Carbon Monoxide

Q: Matte is a mixture of

A) CuS and FeS

B) Cu₂S and FeS

C) Cu₂O and FeS

D) Cu₂O and FeO

Q: The impurity present in mineral is called

A) Metal

B) Brine

C) Ore

D) Gangue

Q: All are the raw materials for the manufacturing of urea except

A) CO₂

B) NH₃

C) CH₄

D) NaCl

Q: Percentage of nitrogen in urea is

A) 14%

B) 28%

C) 60%

D) 46%

Q: Blister copper is refined through

A) Concentration

B) Reduction

C) Smelting

D) Electrolysis

Q: Petroleum is separated into different fractions by the process of

A) Simple distillation

B) Condensation

C) Fractional distillation

D) Destructive distillation

Q: All steps are used for the extraction of metals except

A) Roasting

B) Smelting

C) Evaporation

D) Bessemerization

Q: When Sodium Bicarbonate is heated to get sodium carbonate all are produced except

A) CO

B) CO₂

C) Na₂CO₃

D) Froth