Biomolecules

Bihar Board Class 12 · Chemistry · 34 past questions

1. Q1 2026 Set A

   Maltose on hydrolysis gives

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2. Q2 2026 Set A

   Which of the following is not a macromolecule ?

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3. Q3 2026 Set A

   Which of the following is capable of forming Zwitter ion ?

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4. Q4 2026 Set A

   Riboflavin is the chemical name of which of the following ?

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5. Q5 2025 Set D

   The source of fats and oils is

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6. Q6 2025 Set D

   Water soluble vitamin is

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7. Q7 2025 Set D

   The purine base present in RNA is

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8. Q8 2025 Set D

   Which of the following is a disaccharide ?

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9. Q9 2024 Set D

   Vitamin $B_{12}$ contains

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10. Q10 2024 Set D

    The helical structure of protein is stabilized by which of the following ?

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11. Q11 2024 Set D

    Which of the following is a ketohexose ?

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12. Q12 2024 Set D

    A vitamin which plays a vital role in the coagulating property of blood is

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13. Q13 2023 Set F2022 Set E

    Enzymes are

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14. Q14 2023 Set F

    Which of the following carbohydrates is the most abundant in nature ?

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15. Q15 2023 Set F

    Which of the following disaccharides is present in milk ?

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16. Q16 2023 Set F

    Which of the following is the chemical name of vitamin $A$ ?

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17. Q17 2023 Set F

    Which of the following vitamins are soluble in water ?

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18. Q18 2023 Set F

    From which of the following is insulin secreted ?

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19. Q19 2023 Set F

    Which of the following diseases is caused due to the deficiency of Vitamin $E$ ?

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20. Q20 2022 Set E

    Cane sugar on hydrolysis gives which of the following ?

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21. Q21 2022 Set E

    Vitamin C is

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22. Q22 2022 Set E

    Which one of the following contains cobalt ?

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23. Q23 2022 Set E

    Which of the following enzymes is used in the hydrolysis of starch?

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24. Q24 2021 Set A

    Which one is capable of forming zwitterion ?

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25. Q25 2021 Set A

    What is an enzyme?

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26. Q26 2021 Set A

    Vitamin A is known as

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27. Q27 2021 Set A

    The human body does not produce

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28. Q28 2021 Set A

    In reaction $OHCH_2-(CHOH)_4-CHO \xrightarrow{HI,\Delta}$ ..........., product is

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29. Q29 2021 Set A

    Ascorbic acid is a

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30. Q30 2019 Set D

    Formula of sucrose is -

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31. Q31 2019 Set D

    Carbohydrate which yields three to ten mono saccharide units on hydrolysis is called -

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32. Q32 2017

    Sweetest of all sugar is –

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33. Q33 2017

    Enzyme is –

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34. Q34 2017

    Name two vitamins and their deficiency diseases.

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