Air English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021

8th Standard

    Reg.No. :
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Science

Time : 00:05:00 Hrs
Total Marks : 5

    Part A

    5 x 1 = 5
  1. Which of the following is true about oxygen?

    (a)

    Completely burning gas

    (b)

    Partially burning gas

    (c)

    Doesn’t support burning

    (d)

    Supports burning

  2. Aerated water contains

    (a)

    air

    (b)

    oxygen

    (c)

    carbon dioxide

    (d)

    nitrogen

  3. Solvay process is a method to manufacture

    (a)

    lime water

    (b)

    aerated water

    (c)

    distilled water

    (d)

    sodium carbonate

  4. Carbon dioxide with water changes

    (a)

    blue litmus to red

    (b)

    red litmus to blue

    (c)

    blue litmus to yellow

    (d)

    doesn’t react with litmus

  5. Which of the following is known as azote?

    (a)

    Oxygen

    (b)

    Nitrogen

    (c)

    Sulpher

    (d)

    Carbon dioxide

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