Solutions English Medium Free Online Test 1 Mark Questions 2020-2021

10th Standard

    Reg.No. :
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Science

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. The number of components in a binary solution is _____________

    (a)

    2

    (b)

    3

    (c)

    4

    (d)

    5

  2. Identify the non aqueous solution.

    (a)

    sodium chloride in water

    (b)

    glucose in water

    (c)

    copper sulphate in water

    (d)

    sulphur in carbon-di-sulphide

  3. A 25% alcohol solution means 

    (a)

    25 ml alcohol in 100 ml of water

    (b)

    25 ml alcohol in 25 ml of water

    (c)

    25 ml alcohol in 75 ml of water

    (d)

    75 ml alcohol in 25 ml of water

  4. 40 g of sodium chloride in 100 g of water at 250 C forms ________ solution.

    (a)

    Super saturatedUnsaturated

    (b)

    Unsaturated

    (c)

    Saturated

    (d)

    Both (a) and (b)

  5. White vitriol is ________

    (a)

    CaSO4·7H2O

    (b)

    MgSO4.7H2O

    (c)

    K2SO4.7H2O

    (d)

    ZnSO4.7H2O

  6. Solubility of a solute is governed by

    (a)

    nature of solute and solvent

    (b)

    temperature

    (c)

    pressure

    (d)

    all the above

  7. In exothermic process as the temperature increases, solubility of the salt is _____________

    (a)

    decreases

    (b)

    increases

    (c)

    no change

    (d)

    increase and then remains constant

  8. Salt solution containing common salt in water is an example for _____________

    (a)

    binary solution

    (b)

    trinary solution

    (c)

    suspension

    (d)

    colloidal solution

  9. In which of the following solutions, both solute and solvent are solids?

    (a)

    cork

    (b)

    cheese

    (c)

    alloys

    (d)

    smoke

  10. Solubility of CaO _____ with the increases in temperature.

    (a)

    increases

    (b)

    decreases

    (c)

    remains constant

    (d)

    None of these

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