CUET PG PYQs for Physical and Chemical Science with Solutions: Practice CUET PG Previous Year Questions

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Physical and Chemical Science is an important topic in the Environmental Sciences section in CUET PG exam. Practising this topic will increase your score overall and make your conceptual grip on CUET PG exam stronger.

This article gives you a full set of CUET PG PYQs for Physical and Chemical Science with explanations for effective preparation. Practice of CUET PG Environmental Sciences PYQs including Physical and Chemical Science questions regularly will improve accuracy, speed, and confidence in the CUET PG 2026 exam.

CUET PG PYQs for Physical and Chemical Science with Solutions

1.
Arrange the following II B (or 12) group elements in the increasing order of their Pauling electronegativities:
Elements:
A. Zn
B. Hg
C. Cd
Choose the correct answer from the options given below:
- (A), (B), (C)
- (C), (B), (A)
- (C), (A), (B)
- (A), (C), (B)
View Solution

2.
Match the type of equilibrium with typical examples:
List I List II
A. Oxidation/Reduction Equilibrium (K_redox) --- III. MnO4- + 5Fe2+ + 8H+ ⇌ Mn2+ + 5Fe3+ + 4H2O
B. Heterogeneous Equilibrium (Ksp) --- IV. BaSO4(s) ⇌ Ba2+ + SO4 2-
C. Distribution Equilibrium (Kd) --- I. I2(aq) ⇌ I2(org)
D. Dissociation of weak Acid (Ka) --- II. CH3COOH + H2O ⇌ H3O+ + CH3COO- III. MnO4- + 5Fe2+ + 8H+ ⇌ Mn2+ + 5Fe3+ + 4H2O
IV. BaSO4(s) ⇌ Ba2+ + SO4 2-
I. I2(aq) ⇌ I2(org)
II. CH3COOH + H2O ⇌ H3O+ + CH3COO-

List I	List II
A. Oxidation/Reduction Equilibrium (K_redox) --- III. MnO4- + 5Fe2+ + 8H+ ⇌ Mn2+ + 5Fe3+ + 4H2O B. Heterogeneous Equilibrium (Ksp) --- IV. BaSO4(s) ⇌ Ba2+ + SO4 2- C. Distribution Equilibrium (Kd) --- I. I2(aq) ⇌ I2(org) D. Dissociation of weak Acid (Ka) --- II. CH3COOH + H2O ⇌ H3O+ + CH3COO-	III. MnO4- + 5Fe2+ + 8H+ ⇌ Mn2+ + 5Fe3+ + 4H2O IV. BaSO4(s) ⇌ Ba2+ + SO4 2- I. I2(aq) ⇌ I2(org) II. CH3COOH + H2O ⇌ H3O+ + CH3COO-

A-IV, B-III, C-I, D-II
A-III, B-I, C-IV, D-II
A-III, B-IV, C-II, D-I
A-III, B-IV, C-I, D-II

View Solution

3.
A black body has a temperature of 2900 K. The wavelength of peak emission ($λ_{max}$) of the radiation emitted from it is approximately equal to:
- 1.500 nm
- 1000 nm
- 3000 nm
- 6000 nm
View Solution
4.
Which of the following species act as Lewis Acid? A. F$^-$ B. H$^+$ C. AlCl$_3$ D. BCl$_3$ E. H$_2$O
- A, C and D only
- C, D and E only
- B, C and D only
- B, C, D and E only
View Solution
5.
What will be the energy of 1 mole of photons having a wavelength of 200 nm?
Planck’s constant, $ h = 6.6 \times 10^{-34} \, \mathrm{Js} $ and Speed of light, $ c = 3.0 \times 10^8 \, \mathrm{ms^{-1}} $
- $-19.8 \times 10^{-19} \, \mathrm{KJ \, mol^{-1}}$
- $\sim 9.9 \times 10^{-19} \, \mathrm{KJ \, mol^{-1}}$
- $-599 \, \mathrm{KJ \, mol^{-1}}$
- $\sim 599 \, \mathrm{J \, mol^{-1}}$
View Solution
6.
What will be the molar concentration of ammonium ion in a 100 ppb ammoniacal solution?
- 5.56 mol/L
- 5.56 × 10^-3 mol/L
- 5.56 × 10⁴ mol/L
- 5.56 × 10^-6 mol/L
View Solution
7.
Which of the following phosphate species does not exist in water?
- H₂PO₄⁻
- HPO₄²⁻
- PO₄³⁻
- HPO₃³⁻
View Solution
8.
Which of the following chemical species will dominantly exist in water having a pH of less than 5?
- HCO₃⁻
- CO₃²⁻
- H₂CO₃
- Free CO₂
View Solution

9.
Match the pathogens with their associated diseases:
List I List II
A. Threadworm --- III. Strongyloidiasis
B. Cryptosporidium species --- IV. Diarrhea
C. Roundworm --- I. Ascariasis
D. Whipworm --- II. Trichuriasis III. Strongyloidiasis
IV. Diarrhea
I. Ascariasis
II. Trichuriasis

List I	List II
A. Threadworm --- III. Strongyloidiasis B. Cryptosporidium species --- IV. Diarrhea C. Roundworm --- I. Ascariasis D. Whipworm --- II. Trichuriasis	III. Strongyloidiasis IV. Diarrhea I. Ascariasis II. Trichuriasis

A-I, B-II, C-III, D-IV
A-III, B-II, C-IV, D-I
A-III, B-IV, C-II, D-I
A-III, B-I, C-IV, D-II

View Solution

10.
Match List I with List II:
LIST I (Experiment) LIST II (Conclusion)
A. Photoelectric effect I. Ether medium does not exist
B. Michelson-Morley II. Light is made up of photons
C. Stern-Gerlach III. Quantization of electronic orbit
D. Franck-Hertz IV. Electron spin moment
Choose the correct answer from the options given below:

LIST I (Experiment)	LIST II (Conclusion)
A. Photoelectric effect	I. Ether medium does not exist
B. Michelson-Morley	II. Light is made up of photons
C. Stern-Gerlach	III. Quantization of electronic orbit
D. Franck-Hertz	IV. Electron spin moment

(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
(A) - (II), (B) - (I), (C) - (IV), (D) - (III)
(A) - (II), (B) - (III), (C) - (IV), (D) - (I)
(A) - (III), (B) - (II), (C) - (I), (D) - (IV)

View Solution

11.
Cooking pans made from which of the following metals would need less heat to achieve a certain cooking temperature?
- Copper (specific heat 0.093 Kcal/kg °C)
- Iron (specific heat 0.11 Kcal/kg °C)
- Aluminium (specific heat 0.22 Kcal/kg °C)
- Silver (specific heat 0.056 Kcal/kg °C)
View Solution
12.
Which of the following elements in the periodic table are considered as metalloids? A. P B. As C. Si D. S E. Ge
- A, D and E only
- A, B and E only
- A, C and E only
- B, C and E only
View Solution
13.
In which of the following pairs of chemical species does sulfur (S) not have the same oxidation number?
- S₂ and H₂S
- H₂SO₃ and SO₂
- HS⁻ and S²⁻
- H₂S and S₂⁻
View Solution
14.
What will be the unit of equilibrium constant for the following reaction?
CH₃COCH₃ + HCN ⇌ CH₃C(OH)(CN)CH₃
- mol² dm⁻⁶
- No unit (unitless)
- mol dm⁻³
- mol⁻¹ dm³
View Solution
15.
When ice starts melting from 0°C to 8.5°C, its density will:
- Remain constant
- First increase, then decrease
- First decrease, then increase
- Decrease only
View Solution

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CUET PG PYQs for Physical and Chemical Science with Solutions: Practice CUET PG Previous Year Questions

CUET PG PYQs for Physical and Chemical Science with Solutions

1.
Arrange the following II B (or 12) group elements in the increasing order of their Pauling electronegativities:
Elements:
A. Zn
B. Hg
C. Cd
Choose the correct answer from the options given below:

3.
A black body has a temperature of 2900 K. The wavelength of peak emission ($λ_{max}$) of the radiation emitted from it is approximately equal to:

4.
Which of the following species act as Lewis Acid? A. F$^-$ B. H$^+$ C. AlCl$_3$ D. BCl$_3$ E. H$_2$O

5.
What will be the energy of 1 mole of photons having a wavelength of 200 nm?
Planck’s constant, \( h = 6.6 \times 10^{-34} \, \mathrm{Js} \) and Speed of light, \( c = 3.0 \times 10^8 \, \mathrm{ms^{-1}} \)

6.
What will be the molar concentration of ammonium ion in a 100 ppb ammoniacal solution?

7.
Which of the following phosphate species does not exist in water?

8.
Which of the following chemical species will dominantly exist in water having a pH of less than 5?

9.
Match the pathogens with their associated diseases:
List I List II
A. Threadworm --- III. Strongyloidiasis
B. Cryptosporidium species --- IV. Diarrhea
C. Roundworm --- I. Ascariasis
D. Whipworm --- II. Trichuriasis III. Strongyloidiasis
IV. Diarrhea
I. Ascariasis
II. Trichuriasis

11.
Cooking pans made from which of the following metals would need less heat to achieve a certain cooking temperature?

12.
Which of the following elements in the periodic table are considered as metalloids? A. P B. As C. Si D. S E. Ge

13.
In which of the following pairs of chemical species does sulfur (S) not have the same oxidation number?

14.
What will be the unit of equilibrium constant for the following reaction?
CH₃COCH₃ + HCN ⇌ CH₃C(OH)(CN)CH₃

15.
When ice starts melting from 0°C to 8.5°C, its density will:

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CUET PG PYQs for Physical and Chemical Science with Solutions

1.Arrange the following II B (or 12) group elements in the increasing order of their Pauling electronegativities:Elements:A. ZnB. HgC. CdChoose the correct answer from the options given below:

3.A black body has a temperature of 2900 K. The wavelength of peak emission ($λ_{max}$) of the radiation emitted from it is approximately equal to:

4.Which of the following species act as Lewis Acid? A. F$^-$ B. H$^+$ C. AlCl$_3$ D. BCl$_3$ E. H$_2$O

5.What will be the energy of 1 mole of photons having a wavelength of 200 nm?Planck’s constant, \( h = 6.6 \times 10^{-34} \, \mathrm{Js} \) and Speed of light, \( c = 3.0 \times 10^8 \, \mathrm{ms^{-1}} \)

6.What will be the molar concentration of ammonium ion in a 100 ppb ammoniacal solution?

7.Which of the following phosphate species does not exist in water?

8.Which of the following chemical species will dominantly exist in water having a pH of less than 5?

9.Match the pathogens with their associated diseases:List IList IIA. Threadworm --- III. StrongyloidiasisB. Cryptosporidium species --- IV. DiarrheaC. Roundworm --- I. AscariasisD. Whipworm --- II. TrichuriasisIII. StrongyloidiasisIV. DiarrheaI. AscariasisII. Trichuriasis

11.Cooking pans made from which of the following metals would need less heat to achieve a certain cooking temperature?

12.Which of the following elements in the periodic table are considered as metalloids? A. P B. As C. Si D. S E. Ge

13.In which of the following pairs of chemical species does sulfur (S) not have the same oxidation number?

14.What will be the unit of equilibrium constant for the following reaction?CH3COCH3 + HCN ⇌ CH3C(OH)(CN)CH3

15.When ice starts melting from 0°C to 8.5°C, its density will:

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1.
Arrange the following II B (or 12) group elements in the increasing order of their Pauling electronegativities:
Elements:
A. Zn
B. Hg
C. Cd
Choose the correct answer from the options given below:

3.
A black body has a temperature of 2900 K. The wavelength of peak emission ($λ_{max}$) of the radiation emitted from it is approximately equal to:

4.
Which of the following species act as Lewis Acid? A. F$^-$ B. H$^+$ C. AlCl$_3$ D. BCl$_3$ E. H$_2$O

5.
What will be the energy of 1 mole of photons having a wavelength of 200 nm?
Planck’s constant, \( h = 6.6 \times 10^{-34} \, \mathrm{Js} \) and Speed of light, \( c = 3.0 \times 10^8 \, \mathrm{ms^{-1}} \)

6.
What will be the molar concentration of ammonium ion in a 100 ppb ammoniacal solution?

7.
Which of the following phosphate species does not exist in water?

8.
Which of the following chemical species will dominantly exist in water having a pH of less than 5?

9.
Match the pathogens with their associated diseases:
List I List II
A. Threadworm --- III. Strongyloidiasis
B. Cryptosporidium species --- IV. Diarrhea
C. Roundworm --- I. Ascariasis
D. Whipworm --- II. Trichuriasis III. Strongyloidiasis
IV. Diarrhea
I. Ascariasis
II. Trichuriasis

11.
Cooking pans made from which of the following metals would need less heat to achieve a certain cooking temperature?

12.
Which of the following elements in the periodic table are considered as metalloids? A. P B. As C. Si D. S E. Ge

13.
In which of the following pairs of chemical species does sulfur (S) not have the same oxidation number?

14.
What will be the unit of equilibrium constant for the following reaction?
CH₃COCH₃ + HCN ⇌ CH₃C(OH)(CN)CH₃

15.
When ice starts melting from 0°C to 8.5°C, its density will: