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Periodic trends down group 16 (reactivity, atomic size, ionisation enthalpy, density)

This type of question, asked 5 times: May 2021 S1, 4 May 2023 S1, 11 May 2023 S2, 10 May 2024 S2, 12 May 2024 S1. All 5 questions below, oldest first.

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  1. Question 1

    May 2021 S1

    80
    Among the following orders, which one is the correct order of reactivity of group 16 elements?

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  2. Question 2

    4 May 2023 S1

    62
    Identify the element having lowest first ionization enthalpy.

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  3. Question 3

    11 May 2023 S2

    90
    Which element from following has largest atomic size as compared to other three?

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  4. Question 4

    10 May 2024 S2

    82
    Which from following is a correct decreasing order of ionization enthalpies of different elements?

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  5. Question 5

    12 May 2024 S1

    89
    Identify the element having highest density from following.

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