10th Standard English Medium Science Subject Types of Chemical Reactions Creative 1 Mark Questions with Solution Part - I

10th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. Decomposition reactions are brought about by ________

    (a)

    heat

    (b)

    light

    (c)

    electricity

    (d)

    all the above

  2. When Zinc metal is placed in hydrochloric acid, the gas evolved is _________________

    (a)

    CO

    (b)

    CO2

    (c)

    H2

    (d)

    H2O

  3. Pick out a chemical reaction which is not feasible

    (a)

    2NaCI ⟶ 2Na + Cl2

    (b)

    2NaCI + F ⟶ 2NaF + Cl2

    (c)

    2NaF + Cl2 ⟶ 2NaCI + F

    (d)

    NaOH + HCI ⟶ NaCl + H2O

  4. Pick out the metal that displaces hydrogen from hydrochloric acid.

    (a)

    Zinc

    (b)

    Silver

    (c)

    Copper

    (d)

    Gold

  5. When a double displacement reaction takes place, one of the products must be

    (a)

    Precipitate

    (b)

    Water

    (c)

    either (a) or (b)

    (d)

    neither (a) nor (b)

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