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Combustion and ...

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  • Question 1
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    A paper-wrapped tightly around the joint of a brass tube and its wooden handle is put in a flame, the paper will:

  • Question 2
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    ___________ component of air is the supporter of burning.

  • Question 3
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    In a Bunsen's burner, use is made of:

  • Question 4
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    The gas used in fire extinguishers is

  • Question 5
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    Directions For Questions

    Place a candle in a beaker or a wide-mouthed bottle and light it. Light an incense stick (agarbati) and take it to the mouth of the beaker as shown in the figure. Note the way in which the smoke flows when the incense stick is (i) near the edge of the beaker, (ii) kept a little above the candle, and (iii) kept in other regions.

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    What does the above experiment show ?

  • Question 6
    1 / -0

    Holmes signals can be given by using:

  • Question 7
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    Complete combustion of $$CH_{4}$$ gives:

  • Question 8
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    Which one of the following metal burns, if kept in air?

  • Question 9
    1 / -0

    Fire-related deaths are mostly due to:

  • Question 10
    1 / -0

    What is used as a fuel in jet planes?

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