Mole concept and Molar Masses is an important topic in the Chemistry section in MHT CET exam. Practising this topic will increase your score overall and make your conceptual grip on MHT CET exam stronger.
This article gives you a full set of MHT CET PYQs for Mole concept and Molar Masses with explanations for effective preparation. Practice of MHT CET Chemistry PYQs including Mole concept and Molar Masses questions regularly will improve accuracy, speed, and confidence in the MHT CET 2026 exam.
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MHT CET PYQs for Mole concept and Molar Masses with Solutions
1.
The molality of solution containing $15.20\, g$ of urea, (molar mass = $60$) dissolved in $150 \,g$ of water is- $1.689 \, mol \, kg^{-1}$
- $0.1689 \, mol \, kg^{-1}$
- $0.5922 \, mol \, kg^{-1}$
- $0.2533 \, mol \, kg^{-1}$
2.
Volume of a gas at NTP is \( 1.12 \times 10^{-7} \, \text{cm}^3 \). The number of molecules in it is:- \( 3.01 \times 10^{12} \)
- \( 3.01 \times 10^{24} \)
- \( 3.01 \times 10^{23} \)
- \( 3.01 \times 10^{20} \)
3.
What is the molar mass of the third member of the homologous series if the molar mass of the first member is 46 g?- 60 g
- 74 g
- 138 g
- 80 g
4.
In RNA, thymine is replaced by__________.- (A) Guanine
- (B) Uracil
- (C) Both (A) and (B)
- (D) None of these
5.
Total pressure of the solution is 500, the partial pressure of component A is 400, and the partial pressure of component B is 575. What is the mole fraction of component B?- 0.5
- 0.6
- 0.8
- 0.9
6.
Calculate the mass in kg of 4.48 dm$^3$ carbon dioxide at STP.- 2.2 $\times$ 10$^{-3}$ kg
- 4.4 $\times$ 10$^{-3}$ kg
- 6.6 $\times$ 10$^{-3}$ kg
- 8.8 $\times$ 10$^{-3}$ kg
7.
Calculate the number of moles present in 9.10 × 1016 kg of water.
- 0.9
- 1.8
- 4.5
- 5
8.
All alkali metals are good dash agents?- (A) Oxidizing
- (B) Reducing
- (C) Both oxidising and reducing
- (D) Neither oxidizing not reducing
9.
A solution contains 10 g of NaOH dissolved in 500 mL of water. What is the molarity of the NaOH solution?- 0.25 M
- 0.5 M
- 1.0 M
- 2.0 M
10.
If is the density of aqueous KI, determine the molality of KI.- (A) 1.51 m
- (B) 2.53 m
- (C) 3.54 m
- (D) 2.55 m
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