Haloalkanes and Haloarenes

Bihar Board Class 12 · Chemistry · 27 past questions

1. Q1 2026 Set A

   When chloroform reacts with acetone then which of the following is formed ?

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2. Q2 2026 Set A

   In Wurtz reaction, the reduction of alkyl halide is carried with

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3. Q3 2026 Set A

   Ethyl bromide on boiling with alcoholic caustic potash gives

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4. Q4 2025 Set D

   Which of the following has zero dipole moment ?

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5. Q5 2025 Set D

   Chloroform is

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6. Q6 2024 Set D

   The IUPAC name of $CH_3-CH(CH_3)-CH_2-CH_2Cl$ is

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7. Q7 2024 Set D

   $C_2H_5Br + NaOH \rightarrow C_2H_5OH + NaBr$ is an example of which of the following types of reaction ?

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8. Q8 2024 Set D

   Which of the following alkyl halides is hydrolysed by S$_N$1 mechanism ?

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9. Q9 2024 Set D

   When ethyl bromide is treated with dry silver oxide, then we get

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10. Q10 2024 Set D2023 Set F

    Chloroform on reduction with zinc and water gives

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11. Q11 2023 Set F

    Which of the following is Vinyl halide ?

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12. Q12 2023 Set F

    Alkyl halides are used for the preparation of which of the following ?

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13. Q13 2023 Set F

    Which of the following compounds has zero dipole moment ?

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14. Q14 2022 Set E

    Pyroligneous acid contains

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15. Q15 2022 Set E

    Which of the following is Gammexane ?

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16. Q16 2022 Set E

    Which of the following compounds is used in fire extinguisher ?

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17. Q17 2022 Set E

    Monohalogen derivative on reaction with alcoholic KOH gives

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18. Q18 2022 Set E

    Which of the following compounds is formed when —…

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19. Q19 2021 Set A

    The reaction between alkyl halide and sodium metal is called

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20. Q20 2021 Set A

    The product of the reaction $C_2H_5Br \xrightarrow[\text{Alcoholic}]{KOH}$ is

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21. Q21 2021 Set A

    Which one of the following is the main product of the reaction…

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22. Q22 2021 Set A

    $S_N2$ mechanism proceeds via formation of

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23. Q23 2018

    Which alkyl halide follows only $SN^2$ hydrolysis mechanism? (with a figure)

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24. Q24 2018

    $C_6H_6 \xrightarrow[FeCl_3,\Delta]{Cl_2} [A] \xrightarrow[AlCl_3]{CH_3} [B]$… (with a figure)

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25. Q25 2018

    Write Friedel-Crafts alkylation and acylation reaction. (with a figure)

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26. Q26 2017

    A Grignard reagent is prepared by the action of magnesium in dry ether on –

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27. Q27 2017

    Fill in the blanks –

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