9th Standard English Medium Science Subject Acids, Bases and Salts Book Back 5 Mark Questions with Solution Part - I

9th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. Zn + 2HCl \(\longrightarrow \) ZnCl2 + ____\(​​​​\uparrow \)(H2' O2' CO2)

    (a)

    H2

    (b)

    O2

    (c)

    CO2

    (d)

    CO2

  2. Acids in plants and animals are organic acids. Whereas acids in rocks and minerals are_________

    (a)

    Inorganic acids

    (b)

    Weak acids

    (c)

    citric acid

    (d)

    ascorbic acid

  3. Since metal carbonate and metal bicarbonate are basic they react with acids to give salt and water with the liberation of__________

    (a)

    NO2

    (b)

    SO2

    (c)

    CO2

    (d)

    SO4

  4. The nature of the tooth paste commonly used is in nature

    (a)

    acidic

    (b)

    basic

    (c)

    neutral

    (d)

    neutral

  5. The hydrated salt of copper sulphate has______colour

    (a)

    Red

    (b)

    White

    (c)

    Blue

    (d)

    Pink

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