10th Standard English Medium Science Subject Carbon and Its Compounds Creative 1 Mark Questions with Solution Part - II

10th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. Chemical formula of acetaldehyde is _________________.

    (a)

    CH3CHO

    (b)

    CH3CH2OH

    (c)

    CH3COOCH3

    (d)

    CH3-O-CH3

  2. Ethanolis used as ______________

    (a)

    a preservative for biological specimen

    (b)

    an antifreeze

    (c)

    an antiseptic

    (d)

    all the above

  3. Ethanoic acid turns

    (a)

    red litmus blue

    (b)

    blue litmus red

    (c)

    red litmus green

    (d)

    blue litmus green

  4. Hard water contains salts of ____________

    (a)

    Ca and Mg

    (b)

    Fe and Ca

    (c)

    Cu and Fe

    (d)

    Cu and Ca

  5. Identify the product formed when ethanol reacts with sodium

    (a)

    Sodium acetate

    (b)

    Sodium ethanate

    (c)

    Sodium ethoxide

    (d)

    Sodium formate

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