MHT CET PYQs for Structure of atom with Solutions: Practice MHT CET Previous Year Questions

Educational Content Expert | Updated on - Nov 26, 2025

Structure of atom 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 Structure of atom with explanations for effective preparation. Practice of MHT CET Chemistry PYQs including Structure of atom questions regularly will improve accuracy, speed, and confidence in the MHT CET 2026 exam.

MHT CET PYQs for Structure of atom with Solutions

1.
Plastic used to preserve yogurts is replaced with a polymer called polylactic acid is an example of ____________.
- (A) Green chemistry
- (B) Waste management
- (C) Green revolution
- (D) None of above
View Solution
2.
How many mole of electrons are required for the reduction of 1 mole of Cr³⁺ to Cr_(s)?
- 1
- 6.022 x 10²³
- 3
- 6
View Solution
3.
The enthalpy and entropy change for the reaction: ${Br}_{2} (l) + {Cl}_{2} (g) \to 2 BrCl (g)$ are $30 kJ {mol}^{- 1}$ and $105 {JK}^{- 1} {mol}^{- 1}$ respectively.The temperature at which the reaction will be in equilibrium is:
- (A) $273 K$
- (B) $450 K$
- (C) $300 K$
- (D) $285.7 K$
View Solution
4.
An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be:
- (A) $A B$
- (B) $A_{2} B$
- (C) ${A B}_{3}$
- (D) $A_{3} B$
View Solution
5.
$12 g$ of urea is present in 1 litre of solution and $68.4 g$ of sucrose is separately dissolved in 1 litre of another sample of solution. The lowering of vapour pressure of first solution is:
- (A) Equal to that of second solution
- (B) Greater than that of second solution
- (C) Less than that of second solution
- (D) Double that of seconds solution
View Solution
6.
In ___________, a reaction product is itself a catalyst for that reaction leading to positive feedback.
- (A) Autocatalysis
- (B) Catalysis
- (C) Pressure jump
- (D) Fast reactions
View Solution
7.
Calculate the wave number of photon emitted during the transition from the orbit n=2 to n = 1 in hydrogen atom (R_H = 109677 cm^–1)
- 72740 cm^–1
- 83560cm^–1
- 82258 cm^–1
- 92820cm^–1
View Solution
8.
Heavy water is _________.
- (A) Monoterium oxide
- (B) Polyterium oxide
- (C) Deuterium oxide
- (D) Tritium oxide
View Solution
9.
Match correctly the functional group given in List-I with the Nomenclature of that functional group given in list-II:List IList IIa. Aldehydei. Propanoneb. Halogenii. Propanalc. Ketoneiii. Propanold. Alcoholiv. Bromopropane
- (A) a-iv, b-i, c-ii, d-iii
- (B) a-ii, b-iv, c-i, d-iii
- (C) a-ii, b-i, c-iv, d-iii
- (D) a-ii, b-iii, c-iv, d-i
View Solution
10.
Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If atomic number of carbon is 6, the atomic number of silicon is:
- (A) 7
- (B) 14
- (C) 21
- (D) 24
View Solution
11.
Which is an oxidizing agent in following reaction?
Fe_(s) + Cu²⁺_(aq) $\to$ Fe²⁺_(aq) + Cu_(s)
- Fe²⁺_(aq)
- Fe(s)
- Cu²⁺_(aq)
- Cu(s)
View Solution
12.
When $10 m l$ of $0.2 M$ solution of an acid is added to $250 m l$ of a buffer solution with $p H = 6.34$ , the $p H$ of the solution becomes $6.32$ . The buffer capacity of the solution is:
- (A) 0.1
- (B) 0.2
- (C) 0.3
- (D) 0.4
View Solution

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MHT CET PYQs for Structure of atom with Solutions: Practice MHT CET Previous Year Questions

MHT CET PYQs for Structure of atom with Solutions

1.
Plastic used to preserve yogurts is replaced with a polymer called polylactic acid is an example of ____________.

2.
How many mole of electrons are required for the reduction of 1 mole of Cr³⁺ to Cr_(s)?

3.
The enthalpy and entropy change for the reaction: ${Br}_{2} (l) + {Cl}_{2} (g) \to 2 BrCl (g)$ are $30 kJ {mol}^{- 1}$ and $105 {JK}^{- 1} {mol}^{- 1}$ respectively.The temperature at which the reaction will be in equilibrium is:

4.
An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be:

5.
$12 g$ of urea is present in 1 litre of solution and $68.4 g$ of sucrose is separately dissolved in 1 litre of another sample of solution. The lowering of vapour pressure of first solution is:

6.
In ___________, a reaction product is itself a catalyst for that reaction leading to positive feedback.

7.
Calculate the wave number of photon emitted during the transition from the orbit n=2 to n = 1 in hydrogen atom (R_H = 109677 cm^–1)

8.
Heavy water is _________.

9.
Match correctly the functional group given in List-I with the Nomenclature of that functional group given in list-II:List IList IIa. Aldehydei. Propanoneb. Halogenii. Propanalc. Ketoneiii. Propanold. Alcoholiv. Bromopropane

10.
Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If atomic number of carbon is 6, the atomic number of silicon is:

11.
Which is an oxidizing agent in following reaction?
Fe_(s) + Cu²⁺_(aq) \(\to\) Fe²⁺_(aq) + Cu_(s)

12.
When $10 m l$ of $0.2 M$ solution of an acid is added to $250 m l$ of a buffer solution with $p H = 6.34$ , the $p H$ of the solution becomes $6.32$ . The buffer capacity of the solution is:

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MHT CET PYQs for Structure of atom with Solutions

1.Plastic used to preserve yogurts is replaced with a polymer called polylactic acid is an example of ____________.

2.How many mole of electrons are required for the reduction of 1 mole of Cr3+ to Cr(s)?

3.The enthalpy and entropy change for the reaction:Br2(l)+Cl2( g)→2BrCl(g) are 30kJmol−1 and 105JK−1mol−1 respectively.The temperature at which the reaction will be in equilibrium is:

4.An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be:

5.12 g of urea is present in 1 litre of solution and 68.4 g of sucrose is separately dissolved in 1 litre of another sample of solution. The lowering of vapour pressure of first solution is:

6.In ___________, a reaction product is itself a catalyst for that reaction leading to positive feedback.

7.Calculate the wave number of photon emitted during the transition from the orbit n=2 to n = 1 in hydrogen atom (RH = 109677 cm–1)

8.Heavy water is _________.

9.Match correctly the functional group given in List-I with the Nomenclature of that functional group given in list-II:List IList IIa. Aldehydei. Propanoneb. Halogenii. Propanalc. Ketoneiii. Propanold. Alcoholiv. Bromopropane

10.Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If atomic number of carbon is 6, the atomic number of silicon is:

11.Which is an oxidizing agent in following reaction? Fe(s) + Cu2+(aq) \(\to\) Fe2+(aq) + Cu(s)

12.When 10ml of 0.2M solution of an acid is added to 250ml of a buffer solution with pH=6.34, the pH of the solution becomes 6.32. The buffer capacity of the solution is:

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1.
Plastic used to preserve yogurts is replaced with a polymer called polylactic acid is an example of ____________.

2.
How many mole of electrons are required for the reduction of 1 mole of Cr³⁺ to Cr_(s)?

3.
The enthalpy and entropy change for the reaction: ${Br}_{2} (l) + {Cl}_{2} (g) \to 2 BrCl (g)$ are $30 kJ {mol}^{- 1}$ and $105 {JK}^{- 1} {mol}^{- 1}$ respectively.The temperature at which the reaction will be in equilibrium is:

4.
An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be:

5.
$12 g$ of urea is present in 1 litre of solution and $68.4 g$ of sucrose is separately dissolved in 1 litre of another sample of solution. The lowering of vapour pressure of first solution is:

6.
In ___________, a reaction product is itself a catalyst for that reaction leading to positive feedback.

7.
Calculate the wave number of photon emitted during the transition from the orbit n=2 to n = 1 in hydrogen atom (R_H = 109677 cm^–1)

8.
Heavy water is _________.

9.
Match correctly the functional group given in List-I with the Nomenclature of that functional group given in list-II:List IList IIa. Aldehydei. Propanoneb. Halogenii. Propanalc. Ketoneiii. Propanold. Alcoholiv. Bromopropane

10.
Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If atomic number of carbon is 6, the atomic number of silicon is:

11.
Which is an oxidizing agent in following reaction?
Fe_(s) + Cu²⁺_(aq) \(\to\) Fe²⁺_(aq) + Cu_(s)

12.
When $10 m l$ of $0.2 M$ solution of an acid is added to $250 m l$ of a buffer solution with $p H = 6.34$ , the $p H$ of the solution becomes $6.32$ . The buffer capacity of the solution is: