This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
Heavy water is?
Correct!
Wrong!
Tetraethyl lead is used as?
Correct!
Wrong!
Carbon, diamond and graphite are together called?
Correct!
Wrong!
Which of the following is used in pencils ?
Correct!
Wrong!
Washing soda is the common name for?
Correct!
Wrong!
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?
Correct!
Wrong!
The filament of an electric bulb is made of?
Correct!
Wrong!
Chemistry science quiz 22
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