NEET Concentration Based Problem Practice Questions With Solutions

NEET Chemistry Concentration Based Problem Practice Questions

Biology Physics

Question 1.

How much glucose is needed to prepare 250 mL of a 1/20 M (M/20) glucose solution? (Molar mass of glucose: 180 g/mol)

A2.25 g

B4.5 g

C0.44 g

D1.125 g

Question 2.

A 1 M solution of a compound 'X' has a density of 1.25 g/mL. If the molar mass of compound X is 85 g, what is the molality (m) of the solution?

A0.705 m

B1.208 m

C1.165 m

D0.858 m

Question 3.

The density of a 2 M aqueous solution of NaOH is 1.28 g/

c m^{3}

. The molality of the solution is:
[molecular mass of NaOH = 40 g mol^-1]

A1.20 m

B1.56 m

C1.67 m

D1.32 m

Question 4.

Which of the following is dependent on temperature?

AMolarity

BMole fraction

CWeight percentage

DMolality

Question 5.

Calculate the mole fraction of the solute in a 1.00 m aqueous solution.

A0.177

B0.771

C0.0534

D0.0177

Question 6.

6.02 × 10²⁰ molecules of urea are present in 100 mL of its solution. The concentration of the solution is:

A0.01 M

B0.001 M

C0.1 M

D0.02 M

Question 7.

The weight of 70% HNO₃concentrated nitric acid solution that should be used to prepare 250 mL of 2.0 M HNO₃ is:

A90.0 g conc. HNO₃

B70.0 g conc. HNO₃

C54.0 g conc. HNO₃

D45.0 g conc. HNO₃

Question 8.

Mole fraction of solute in a 1.00 molal aqueous solution is:

A0.0177

B0.0344

C1.77

D0.177

Question 9.

25.3 g of sodium carbonate, Na₂CO₃, is dissolved in enough water to make 250 mL of a solution. If sodium carbonate completely dissociates, the molar concentrations of sodium ion, Na⁺ and carbonate ion, $C O_{3}^{2 -}$ are respectively: (molar mass of Na₂CO₃ = 106g mol^-1)

A0.955 M and 1.910 M

B1.910 M and 0.955 M

C1.90 M and 1.910 M

D0.477 M and 0.477 M

Question 10.

The volume occupied by one water molecule (density = 1 g cm^-3) is:

A

9.0 \times 10^{- 23}

{cm}^{3}

B

6.023 \times 10^{- 23}

{cm}^{3}

C

3.0 \times 10^{- 23}

{cm}^{3}

D

5.5 \times 10^{- 23}

{cm}^{3}

Question 1.

Concentrated aqueous sulphuric acid is 98% H₂SO₄ by mass and has a density of 1.80 g mL^-1. The volume of acid required to make one litre of 0.1 M H₂SO₄ solution is:

A11.10 mL

B16.65 mL

C22.20 mL

D5.55 mL

Question 2.

The mole fraction of the solute in one molal aqueous solution is:

A0.027

B0.036

C0.018

D0.009

Question 3.

1 M, 2.5 litre NaOH solution is mixed with another 0.5 M and 3 litre NaOH solution. The molarity of the resultant solution will be:

A0.80 M

B1.0 M

C0.73 M

D0.50 M

Question 4.

Find the molarity of liquid HCl if the density of liquid HCl is 1.17 g/cc.

A36.5

B18.25

C32.05

D42.1

Question 5.

Which of the following options incorrectly describes the possible range of values for the mole fraction (x) of a component in a mixture?

Ax < 1

B– 2 ≤ x ≤ 2

C0 ≤ x ≤ 1

Dx is always non-negative

NEET Concentration Based Problem Practice Questions With Solutions

NEET Chemistry Concentration Based Problem Practice Questions

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

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