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Chemistry

Chemistry
The chemical name of rat poison is

Zinc oxide
Potassium cyanide
Lead nitrate
Zinc phosphide

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Chemistry
Persons working in cement plants and lime stone quarries are prone to disease like

Cancer
Asthma
Silicosis
Pneumoconiosis

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Chemistry
Which of the following is used to remove ink and rust stains on cloth?

Kerosene oil
Oxalic acid
Ether
Alcohol

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Chemistry
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :

Uninterrupted power supply (UPS)
Battery
Power transmittor
Generator

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Chemistry
Which of the following is usually not an air-pollutant?

Carbon dioxide
Nitrous oxide
Sulphur dioxide
Hydrocarbons

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Chemistry
Milk tastes sour when it is left in open for some time. This happens due to the formation of

Carbonic acid
Lactic acid
Acetic acid
Citric acid

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