Solutions

Bihar Board Class 12 · Chemistry · 38 past questions

1. Q1 2026 Set A2025 Set D

   An aqueous solution of which of the following compounds exhibits abnormal osmotic pressure ?

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2. Q2 2026 Set A

   The elevation in boiling point produced by one molal solution of a solute in a solvent is called

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3. Q3 2026 Set A

   Aqueous solution of which of the following will have lowest vapour pressure ?

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4. Q4 2026 Set A

   34.2 g of sugar is present in 234.2 g of its aqueous solution. Then its molal concentration is

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5. Q5 2025 Set D

   Which among the following aqueous solutions has the highest boiling point ?

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6. Q6 2025 Set D

   Which of the following is not a colligative property ?

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7. Q7 2025 Set D

   The solution which shows positive or negative deviation from Raoult's law is called

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8. Q8 2025 Set D

   Isotonic solutions have equal

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9. Q9 2024 Set D

   Isotonic solutions have the same

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10. Q10 2024 Set D

    An azcotropic mixture of HCl and $H_2O$ has

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11. Q11 2024 Set D

    Which of the following modes of expressing concentration of a solution does not depend upon temperature ?

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12. Q12 2024 Set D

    Which of the following show positive deviation from Raoult's law ?

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13. Q13 2024 Set D

    The osmotic pressure of a solution is represented by which of the following equations ?

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14. Q14 2023 Set F

    Which of the following is not an ideal solution ?

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15. Q15 2023 Set F

    Which of the following can pass through semi-permeable membrane ?

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16. Q16 2023 Set F

    If 18 g of glucose is dissolved in 1000 g of solvent, then the solution is said to be

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17. Q17 2023 Set F

    Which of the following will have highest boiling point ?

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18. Q18 2022 Set E

    Which of the following will have maximum depression in freezing point ?

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19. Q19 2022 Set E

    An example of colligative property of a solution is

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20. Q20 2022 Set E

    The number of moles of solute per kg of solvent is called

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21. Q21 2022 Set E

    Solutions which boil at a constant temperature without any change in composition is called

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22. Q22 2021 Set A

    In comparison to 0.01 M solution of glucose, the depression in freezing point of 0.01 M MgCl$_2$ solution is

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23. Q23 2021 Set A

    Which is not affected by temperature ?

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24. Q24 2021 Set A

    Which one of the following is a colligative property?

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25. Q25 2021 Set A

    The van't Hoff factor of Ca(NO$_3$)$_2$ is

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26. Q26 2021 Set A

    gram of caustic soda ( molar mass = 40 ) is dissolved in water and solution is made to 200 cm$^3$. Calculate…

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27. Q27 2018

    The van't Hoff's factor of $0.1\,M\;Ba(NO_2)_2$ solution is 2.74. the degree of dissociation is-

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28. Q28 2018

    A 5% solution of sugar cane (Mol. Wt=342) is isotonic with 1% solution of sunbstance X. The molecular weight…

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29. Q29 2018

    Why does vapour pressure of a liquid decrease with addition of a non-volatile solute?

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30. Q30 2017

    Which of the following aqueous solution should have the highest boiling point?

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31. Q31 2017

    A Solution has an osmotic pressure of 0.0821 atm. At 300 k. Its concentration would be-

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32. Q32 2017

    Azeotropic misture of HCL and $H_2O$ has-

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33. Q33 2017

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34. Q34 2016

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35. Q35 2015

    If 2g of NaOH is present in 200ml of its solution, its molarity will be

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36. Q36 2015

    The osmotic pressure of sugar solution is 2.46 atm at $27^0$C. Calculate the concentration of the solution.

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37. Q37 2015

    How is molarity of a solution different from molality?

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38. Q38 2015

    Discuss Raoult's law of relative lowering of vapour pressure.

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