Solutions One Mark Questions

10th Standard EM

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Science

Time : 00:30:00 Hrs
Total Marks : 20
    5 x 1 = 5
  1. A solution is a __________ mixture.

    (a)

    homogeneous

    (b)

    heterogeneous

    (c)

    homogeneous and heterogeneous

    (d)

    non homogeneous

  2. The number of components in a binary solution is _____________

    (a)

    2

    (b)

    3

    (c)

    4

    (d)

    5

  3. Under which of the following cases, dissolution of sugar will be rapid?

    (a)

    Sugar crystal in hot water

    (b)

    Sugar crystal in cold water

    (c)

    Powdered sugar in hot water

    (d)

    Powdered sugar in cold water

  4. A beaker contains a solution of copper sulphate. precipitation of copper sulphate takes place when small amount of it added to ________ solution.

    (a)

    Saturated

    (b)

    Super saturated

    (c)

    Unsaturated

    (d)

    Concentrated

  5. Quick lime is dissolved in water is a ______________ process.

    (a)

    exothermic

    (b)

    endothermic

    (c)

    reversible

    (d)

    both (a) and (b)

  6. 10 x 1 = 10
  7. The component present in lesser amount, in a solution is called _____________

    ()

    Solute

  8. Example for liquid in solid type solution is ______________

    ()

    Mercury with sodium (amalgam)

  9. Solubility is the amount of solute dissolved in _____ g of solvent.

    ()

    100

  10. Polar compounds are soluble in _____ solvents.

    ()

    polar

  11. Volume persentage decreases with increases in temperature because _____.

    ()

    of expansion of liquids

  12. Iodine dissolved in carbon tetrachloride is an example of _______________

    ()

    non aqueous solution

  13. The effectof pressure on the solubility of a gas in liquid is given by ____________

    ()

    Henry's law

  14. Volume percentage decreases with __________ in temperature

    ()

    increase

  15. Blue vitriol contains _____________ molecules of water of crystallisation

    ()

    5

  16. Blue vitriol is ______________

    ()

    CuSO4.5H2O

  17. 5 x 1 = 5
  18. Deliquescence

  19. (1)

    Cloud

  20. Hygroscopic

  21. (2)

    CaO

  22. Liquid in solid

  23. (3)

    Soda water

  24. Liquid in gas

  25. (4)

    Amalgam

  26. Gas in liquid

  27. (5)

    NaOH

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