Alcohols, Phenols and Ethers

Bihar Board Class 12 · Chemistry · 32 past questions

1. Q1 2026 Set A

   Which of the following is known as wood spirit ?

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2. Q2 2026 Set A

   When vapours of an alcohol are passed over hot reduced copper, it gives an alkene. The alcohol is

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3. Q3 2026 Set A

   Phenol gives a compound of characteristic colouration with which among the following?

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4. Q4 2026 Set A

   The general formula of ether is

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5. Q5 2025 Set D

   General group(s) for alcohols is/are

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6. Q6 2025 Set D

   The number of isomeric alcohols of molecular formula $\mathrm{C_4H_{10}O}$ is

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7. Q7 2025 Set D

   Methyl alcohol on oxidation with acidified $\mathrm{K_2Cr_2O_7}$ gives

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8. Q8 2025 Set D

   Diethyl ether finds its use in medicine as

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9. Q9 2024 Set D

   Lucas reagent is

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10. Q10 2024 Set D

    The IUPAC name of the drawn compound is (with a figure)

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11. Q11 2024 Set D

    Alkyl halides form ethers by reacting with which of the following ?

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12. Q12 2024 Set D2023 Set F

    Butan-2-ol is a

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13. Q13 2023 Set F

    Which of the following will not give iodoform test ?

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14. Q14 2023 Set F

    Which of the following is soluble in water ?

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15. Q15 2023 Set F

    Which of the following gives Acetone on oxidation ?

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16. Q16 2022 Set E

    The reagent which is used to prepare 1-Bromobutane from Butan-1-ol is

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17. Q17 2022 Set E

    Which of the following gives iodoform test ?

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18. Q18 2022 Set E

    From which of the following is methyl alcohol prepared on a large scale ?

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19. Q19 2022 Set E

    Which of the following functional groups is present in alcohol ?

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20. Q20 2022 Set E

    Which of the following is the most acidic ?

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21. Q21 2022 Set E

    Catalytic dehydrogenation of primary alcohol gives

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22. Q22 2021 Set A

    Which is ethoxy ethane ?

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23. Q23 2021 Set A

    The general formula of monohydric alcohol is

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24. Q24 2021 Set A

    Which one of the following compounds is soluble in water?

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25. Q25 2021 Set A

    By which of the following reactions Phenol is converted into salicyl aldehyde ?

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26. Q26 2019 Set D2017

    What happens when-

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27. Q27 2019 Set D

    The functional group of alcohol is -

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28. Q28 2019 Set D

    Alcohol is formed when one of the hydrogen of Alkane is replaced by -

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29. Q29 2018

    P-Nitrophenol is more acidic than P-methy phenol. Why?

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30. Q30 2017

    Primary, Secondary and Tertiary alcohole are distinguished by-

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31. Q31 2017

    Ethyl acetate reacts with $CH_3MgBr$ to form –

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32. Q32 2016

    Write the structural formulae of the following…

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