The p-Block Elements

Bihar Board Class 12 · Chemistry · 73 past questions

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1. Q5 2026 Set A

   Which of the following exhibits only one oxidation state other than zero ?

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2. Q6 2026 Set A

   Which of the following cannot act as a reducing agent ?

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3. Q14 2026 Set A2025 Set D

   Which among the following is the strongest base ?

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4. Q15 2025 Set D

   Which of the following oxides is paramagnetic ?

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5. Q25 2024 Set D

   Which of the following has the smallest bond angle ?

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6. Q26 2023 Set F

   In which of the following oxidation state of oxygen is $+2$ ?

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7. Q31 2022 Set E

   Which of the following forms only one oxyacid ?

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8. Q33 2022 Set E

   Which of the following is the least volatile ?

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9. Q34 2022 Set E

   Which of the following acts both as oxidising as well as reducing agents ?

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10. Q36 2021 Set A

    Chlorine reacts with excess of ammonia to form

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11. Q37 2021 Set A

    Which of the following bonds is the strongest ?

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12. Q39 2021 Set A

    Which of the following has $p\pi-d\pi$ bond?

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13. Q53 2018

    Which of the following gives yellow or brown precipitate with alkaline Nessler's reagent.

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14. Q55 2018

    Which metal nitrate gives colorless gas on thermal decomposition?

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15. Q57 2018

    Electrons affinity of Nitrogen is less than Carbon. Why?

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16. Q58 2018

    Silicon shows only +4 oxidation state but it shows both +2 and +4 oxidation states both. Why?

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17. Q62 2017

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18. Q63 2016

    Which one in the following is the strongest oxidizing agent?

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19. Q70 2015

    Which one of the following is the strongest Lewis acid?

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20. Q72 2015

    Which one of the following is least basic?

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