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Chemistry

Chemistry
The inherited traits of an organism are controlled by

DNA molecules
RNA molecules
enzymes
nucleotides

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Chemistry
Ferrous sulphate is used in water treatment as a/an

Adsorbent
Reducing agent
Coagulant aid
Oxidizing agent

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Chemistry
The metal chiefly used for galvanising iron is :

Zinc
Cadmium
Mercury
Tin

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Chemistry
A mixture of water and alcohol can be separated by

Distillation
Decantation
Evaporation
Filtration

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Chemistry
Air is said to be saturated when :

Its thickness is maximum
It blows over the barren land
It contains maximum content of water vapour
Its pressure is minimum

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Chemistry
A matured mammalian cell without nucleus is

Lymphocyte
Oocyte
Erythrocyte
Spermatozoan

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