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Chemistry

Chemistry
Most commonly used bleaching agent is

Alcohol
Chlorine
Sodium chloride
Carbon dioxide

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Chemistry
Stains of rust on clothes can be removed by :

Oxalic acid
H2O2
Alcohol
Petrol

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Chemistry
Which one of the following elements is used in the manufacture of safety matches?

Silicon
Sodium
Phosphorus
Graphite

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Chemistry
Which of the toxic heavy metals is found in modern tannery industries ?

Zinc
Nickel
Lead
Chromium

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Chemistry
Which one of the following is a micro-element ?

Nitrogen
Chlorine
Oxygen
Hydrogen

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Chemistry
Water can be separated from alcohol water mixture by

Decantation
Distillation
Sublimation
Evaporation

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MORE MCQ ON Chemistry

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