PYQ Vault

Green Chemistry and Nanochemistry

MHT-CET Chemistry. Try each one first, then open its answer.

Top 10 MHT-CET PYQs to practise first

The questions and kinds of question asked most often come first. Each one says how often and in which papers.

  1. Question 1

    This type asked 13 times: 2 May 2023 S2, 4 May 2023 S2, 11 May 2023 S2, 16 May 2023 S1, 12 May 2024 S1, 14 May 2024 S2, 11 Apr 2026 S2, 13 Apr 2026 S1, 15 Apr 2026 S1, 15 Apr 2026 S2, 17 Apr 2026 S1, 20 Apr 2026 S2, 12 May 2026 S1. This one: 12 May 2026 S1 See all 13 of this type

    28
    Which of the following types of nanostructures, the thin film is?

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  2. Question 2

    This type asked 6 times: 22 Apr 2025 S2, 25 Apr 2025 S2, 18 Apr 2026 S1, 18 Apr 2026 S2, 19 Apr 2026 S1, 13 May 2026 S2. This one: 13 May 2026 S2 See all 6 of this type

    50
    Which of the following medicinal plants is used to extract antimocrobial substance for cold?

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  3. Question 3

    This type asked 6 times: 11 May 2023 S1, 14 May 2024 S1, 19 Apr 2025 S1, 20 Apr 2025 S1, 25 Apr 2025 S1, 19 Apr 2026 S1. This one: 19 Apr 2026 S1 See all 6 of this type

    1
    What is the percentage atom economy when formula weight of product is 6565 u and the sum of formula weight of reactant is 130130 u?

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  4. Question 4

    This type asked 5 times: May 2021 S1, 3 May 2023 S1, 10 May 2024 S1, 19 May 2026 S1, 19 May 2026 S2. This one: 19 May 2026 S2 See all 5 of this type

    18
    Which of the following is NOT a role of green chemistry?

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  5. Question 5

    This type asked 5 times: 2 May 2023 S1, 3 May 2023 S2, 26 Apr 2025 S1, 26 Apr 2025 S2, 15 May 2026 S2. This one: 15 May 2026 S2 See all 5 of this type

    14
    What type of information is collected using FTIR spectroscopy ?

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  6. Question 6

    This type asked 5 times: 9 May 2023 S1, 19 Apr 2025 S2, 22 Apr 2025 S1, 11 Apr 2026 S1, 15 May 2026 S1. This one: 15 May 2026 S1 See all 5 of this type

    16
    Identify a compound used as green solvent from following.

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  7. Question 7

    This type asked 4 times: 20 Apr 2025 S2, 16 Apr 2026 S1, 12 May 2026 S2, 14 May 2026 S1. This one: 14 May 2026 S1 See all 4 of this type

    30
    Which of the following pairs of compounds / metals is used for protection of the skin from harmful rays in sunlight?

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  8. Question 8

    This type asked 4 times: 13 Apr 2026 S1, 13 Apr 2026 S2, 20 Apr 2026 S2, 12 May 2026 S1. This one: 12 May 2026 S1 See all 4 of this type

    50
    Which of the following is used as pain-killer?

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  9. Question 9

    Asked 3 times: 2 May 2023 S2*, 11 May 2023 S2*, 16 May 2023 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    71
    Identify one dimensional nanostructure from following.

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  10. Question 10

    This type asked 3 times: 21 Apr 2025 S1, 23 Apr 2025 S1, 15 May 2026 S2. This one: 15 May 2026 S2 See all 3 of this type

    16
    Bottom ash of thermal power stations can be used as raw material for cement and brick industry. This example illustrates which of the following principle of green chemistry?

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