Chemistry science quiz 22

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15
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Washing soda is the common name for?

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Which of the following is used in pencils ?

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Carbon, diamond and graphite are together called?

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The filament of an electric bulb is made of?

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The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is?

Correct! Wrong!

Chemical formula for water is?

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Heavy water is?

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Tetraethyl lead is used as?

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Chemistry science quiz 22
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