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GATE CY: Physical Chemistry: Quantum Chemistry and Spectroscopy previous year questions

46 real GATE CY questions on Physical Chemistry: Quantum Chemistry and Spectroscopy from 2022–2026, with the official answer to each. Try them here, or practise this topic free on Student AI Hub with instant checking and your score.

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Physical Chemistry: Quantum Chemistry and Spectroscopy in GATE at a glance

Questions
46
1-mark / 2-mark
22 / 24
Numerical (NAT)
17
Multiple select (MSQ)
9

Questions per year: 2026: 9 · 2025: 11 · 2024: 10 · 2023: 6 · 2022: 10.

Physical Chemistry: Quantum Chemistry and Spectroscopy questions

Each question is shown exactly as in the official paper. Tap “Show answer” to check yourself.

GATE 2026 · Q.18 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.18
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Answer: D · see the full paper

GATE 2026 · Q.19 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.19
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Answer: B · see the full paper

GATE 2026 · Q.27 · 1 mark · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.27
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Answer: A · see the full paper

GATE 2026 · Q.28 · 1 mark · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.28
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Answer: B, C, D · see the full paper

GATE 2026 · Q.32 · 1 mark · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.32
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Answer: 0.92 to 0.94 · see the full paper

GATE 2026 · Q.33 · 1 mark · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.33
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Answer: 2699 to 2703 · see the full paper

GATE 2026 · Q.45 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.45
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Answer: C · see the full paper

GATE 2026 · Q.61 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.61
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Answer: 1.84 to 1.86 · see the full paper

GATE 2026 · Q.65 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2026 Q.65
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Answer: 29.9 to 30.1 · see the full paper

GATE 2025 · Q.18 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.18
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Answer: C · see the full paper

GATE 2025 · Q.19 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.19
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Answer: B · see the full paper

GATE 2025 · Q.28 · 1 mark · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.28
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Answer: B, C · see the full paper

GATE 2025 · Q.31 · 1 mark · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.31
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Answer: 6 · see the full paper

GATE 2025 · Q.34 · 1 mark · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.34
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Answer: 0.97 to 0.99 · see the full paper

GATE 2025 · Q.45 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.45
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Answer: C · see the full paper

GATE 2025 · Q.56 · 2 marks · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.56
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Answer: A, C · see the full paper

GATE 2025 · Q.57 · 2 marks · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.57
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Answer: B, C, D · see the full paper

GATE 2025 · Q.60 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.60
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Answer: 74.1 to 74.3 · see the full paper

GATE 2025 · Q.61 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.61
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Answer: 3.11 to 3.2 · see the full paper

GATE 2025 · Q.62 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2025 Q.62
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Answer: 1 to 1.2 · see the full paper

GATE 2024 · Q.19 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.19
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Answer: B · see the full paper

GATE 2024 · Q.20 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.20
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Answer: C · see the full paper

GATE 2024 · Q.27 · 1 mark · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.27
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Answer: D · see the full paper

GATE 2024 · Q.33 · 1 mark · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.33
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Answer: 2 · see the full paper

GATE 2024 · Q.44 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.44
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Answer: C · see the full paper

GATE 2024 · Q.45 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.45
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Answer: C · see the full paper

GATE 2024 · Q.56 · 2 marks · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.56
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Answer: B, C · see the full paper

GATE 2024 · Q.57 · 2 marks · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.57
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Answer: B, C · see the full paper

GATE 2024 · Q.62 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.62
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Answer: 3 · see the full paper

GATE 2024 · Q.63 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2024 Q.63
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Answer: 8 · see the full paper

GATE 2023 · Q.27 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2023 Q.27
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Answer: B · see the full paper

GATE 2023 · Q.28 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2023 Q.28
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Answer: C · see the full paper

GATE 2023 · Q.30 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2023 Q.30
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Answer: A · see the full paper

GATE 2023 · Q.44 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2023 Q.44
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Answer: B · see the full paper

GATE 2023 · Q.45 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2023 Q.45
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Answer: A · see the full paper

GATE 2023 · Q.65 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2023 Q.65
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Answer: 3.98 to 4 · see the full paper

GATE 2022 · Q.20 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.20
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Answer: D · see the full paper

GATE 2022 · Q.21 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.21
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Answer: C · see the full paper

GATE 2022 · Q.23 · 1 mark · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.23
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Answer: B · see the full paper

GATE 2022 · Q.35 · 1 mark · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.35
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Answer: 5 · see the full paper

GATE 2022 · Q.49 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.49
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Answer: B · see the full paper

GATE 2022 · Q.50 · 2 marks · MCQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.50
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Answer: B · see the full paper

GATE 2022 · Q.56 · 2 marks · MSQ

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.56
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Answer: B, D · see the full paper

GATE 2022 · Q.59 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.59
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Answer: 0.18 to 0.2 · see the full paper

GATE 2022 · Q.60 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.60
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Answer: 2 · see the full paper

GATE 2022 · Q.64 · 2 marks · NAT

GATE CY Physical Chemistry: Quantum Chemistry and Spectroscopy question, GATE 2022 Q.64
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Answer: 3100 to 3150 · see the full paper

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