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Chemistry

Chemistry
Which of the following contains high content of lead?

Low octane fuel
Coal
Cooking gas
High octane fuel

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Chemistry
A detergent is a

Catalyst
Soap
Cleansing agent
Drug

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Chemistry
The manufacture of iron from iron ore involves the process of

Electrolysis
Reduction
Oxidation
Fractional distillation

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Chemistry
Which of the following is not a nucleon?

Proton
Electron
Neutron
Positron

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Chemistry
Which of the following could be used as fuel in propellant or rockets ?

Liquid Oxygen + Liquid Argon
Liquid Hydrogen + Liquid Nitrogen
Liquid Nitrogen + Liquid Oxygen
Liquid Hydrogen + Liquid Oxygen

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Chemistry
The items amenable to detection by soft x-rays are

contrabands
lead in bullets
genuine coins from counterfeit coins
narcotics

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