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