Default Title

Question (31)

QN006542

If 50 g solute is dissolved in 450 g solvent, the concentration by mass is:

(A) 5%
(B) 10%
(C) 15%
(D) 20%

Correct Answer: B

Explanation:

Link:

Report Error

Question (32)

QN006543

Which type of solution is formed when carbon dioxide dissolves in water?

(A) Suspension
(B) Colloid
(C) Homogeneous solution
(D) Emulsion

Correct Answer: C

Explanation:

Link:

Report Error

Question (33)

QN006544

A 500 mL cough syrup contains 25 g medicine. The concentration is:

(A) 2% m/v
(B) 5% m/v
(C) 10% m/v
(D) 20% m/v

Correct Answer: B

Explanation:

Link:

Report Error

Question (34)

QN006545

If 40 mL alcohol is present in 500 mL solution, concentration is:

(A) 4% v/v
(B) 6% v/v
(C) 8% v/v
(D) 10% v/v

Correct Answer: C

Explanation:

Link:

Report Error

Question (35)

QN006546

Which solution will contain maximum solute particles?

(A) 2% solution
(B) 5% solution
(C) 10% solution
(D) 1% solution

Correct Answer: C

Explanation:

Link:

Report Error

Question (36)

QN006547

A solution has 16 g solute in 400 g solution. Its % m/m concentration is:

(A) 2%
(B) 4%
(C) 6%
(D) 8%

Correct Answer: B

Explanation:

Link:

Report Error

Question (37)

QN006548

Why must pesticides be mixed in correct proportion with water?

(A) To improve colour only
(B) Too much may damage crops and environment
(C) To reduce boiling point
(D) To increase density

Correct Answer: B

Explanation:

Link:

Report Error

Question (38)

QN006549

A student prepares 250 mL glucose solution containing 20 g glucose. The concentration is:

(A) 4% m/v
(B) 6% m/v
(C) 8% m/v
(D) 10% m/v

Correct Answer: C

Explanation:

Link:

Report Error

Question (39)

QN006550

Which of the following is expressed using % v/v?

(A) Salt in flour mixture
(B) Sugar in tea
(C) Acetic acid in vinegar
(D) Copper sulfate crystals

Correct Answer: C

Explanation:

Link:

Report Error

Question (40)

QN006551

If 6 mL liquid pesticide is mixed to make 300 mL solution, the concentration is:

(A) 1% v/v
(B) 2% v/v
(C) 3% v/v
(D) 5% v/v

Correct Answer: B

Explanation:

Link:

Report Error

Question (31)

If 50 g solute is dissolved in 450 g solvent, the concentration by mass is:

Explanation:

Link:

Question (32)

Which type of solution is formed when carbon dioxide dissolves in water?

Explanation:

Link:

Question (33)

A 500 mL cough syrup contains 25 g medicine. The concentration is:

Explanation:

Link:

Question (34)

If 40 mL alcohol is present in 500 mL solution, concentration is:

Explanation:

Link:

Question (35)

Which solution will contain maximum solute particles?

Explanation:

Link:

Question (36)

A solution has 16 g solute in 400 g solution. Its % m/m concentration is:

Explanation:

Link:

Question (37)

Why must pesticides be mixed in correct proportion with water?

Explanation:

Link:

Question (38)

A student prepares 250 mL glucose solution containing 20 g glucose. The concentration is:

Explanation:

Link:

Question (39)

Which of the following is expressed using % v/v?

Explanation:

Link:

Question (40)

If 6 mL liquid pesticide is mixed to make 300 mL solution, the concentration is:

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY