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Chemistry

Chemistry
Which of the following fibres catches fire least ?

Rayon
Cotton
Nylon
Terricot

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Chemistry
Which substance is used to retard the setting action of cement?

CaO
Na2O + K2O
CaSO4, 2H2O
Al2O3

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Chemistry
The chemical name of rat poison is

Zinc oxide
Lead nitrate
Potassium cyanide
Zinc phosphide

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Chemistry
White phosphorus is generally kept under

Kerosene oil
Glycerine
Alcohol
Water

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Chemistry
Fertiliser having high nitrogen content is :

Ammonium nitrate
Calcium citrate
Ammonium sulphate
Urea

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Chemistry
Higher concentration of nitrogen dioxide in atmosphere air causes

Corrosion
Asphyxiation
Bronchitis
Cancer

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MORE MCQ ON Chemistry

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