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This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?
120
Name a tear gas which is used in riots?
Correct!
Wrong!
Name a gas used as rocket propellant and in welding also?
Correct!
Wrong!
Name a gas which is used in refrigeration and in fire extinguisher?
Correct!
Wrong!
Name a gas which is used in the manufacture of vanaspati ghee, alcohol and ammonia?
Correct!
Wrong!
Name an inert diatomic gas which is neither combustible nor helps in combustion?
Correct!
Wrong!
Name a gas used in high speed photography?
Correct!
Wrong!
Name a gas which is separated from the air by passing an electric current through water?
Correct!
Wrong!
Name the gas which is found in abundance in earth in both combine and free state with other elements?
Correct!
Wrong!
Science Quiz 81
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