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Chemistry

Chemistry
In silvery paints, the main constituent present is

Lead powder
Silver powder
White lead
Aluminium powder

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Chemistry
The inherited traits of an organism are controlled by

enzymes
nucleotides
DNA molecules
RNA molecules

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Chemistry
Aqueous solution of which of the following is a good conductor of electricity

Ammonium acetate
Acetic acid
Glucose
Ammonia

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Chemistry
Which one of the following is a greenhouse gas ?

Nitrogen
Carbon dioxide
Helium
Sulphur dioxide

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Chemistry
Among the following, carbonate ore of Zinc is

Sphalerite
Calamine
Zincblende
Zincite

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Chemistry
The element used in the manufacture of safety matches is

Phosphorous
Magnesium
Silicon
Sulphur

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