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Chemistry

Chemistry
Tear gas used by the police to disperse the mob contains

Carbon dioxide
Chlorine
Hydrogen sulphide
Ammonia

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Chemistry
Which one of the following is most electronegative

Tin
Silicon
Carbon
Lead

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Chemistry
Muscle fatigue is caused by the accumulation of :

Oxalacetic acid
Pyruvic acid
Uric acid
Lactic acid

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Chemistry
________ gives hardness to stainless steel.

Zinc
Lead
Tin
Carbon

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Chemistry
The oil used in the froth floatation process is

olive oil
pine oil
kerosene oil
coconut oil

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Chemistry
Which of the following does the Nucleus of an atom consist of?

Protons and electrons
Protons
Protons and neutrons
Electrons

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