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A lot of dry powder of one of the follow...

A lot of dry powder of one of the following chemicals can be released over a fire to extinguish it . This chemical is :

A

plaster of paris

B

baking soda

C

washing soda

D

bitumen

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The correct Answer is:
A, B, D
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  8. The outermost zone of a candle flame is the :

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  9. The flame of a kerosene oil lamp (or lantern ) has :

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  11. An electric spark is struck between two electrodes placed near each ot...

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  12. Give reason for the following : paper by itself catches fire easily ...

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  13. Abida and Ramesh want to heat water taken in separate beakers . Abida ...

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  14. When a lot of dry powder of a substance X is released over a fire, the...

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  15. When a lot of dry powder of a substance X is released over a fire, the...

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  16. When a lot of dry powder of a substance X is released over a fire, the...

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  19. What type of combustion is represented by : ignition of a cracker ?

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