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Chemistry

Chemistry
Bleaching powder is used in drinking water as a/an

Coagulant
Antibiotic
Antiseptic
Disinfectant

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Chemistry
In drinking water supply, which of the following treatments is not involved

Sedimentation
Coagulation
Softening
Disinfection

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Chemistry
Cyanide poisoning causes death in seconds because

It causes cardiac arrest
It causes Lysis of red blood cells
It denatures enzymes of the heart/muscle
It breaks the electron transport chain

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Chemistry
Wood spirit is

Propyl alcohol
Butyl alcohol
Methyl alcohol
Ethyl alcohol

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Chemistry
Baking soda is :

Sodium hydroxide
Sodium carbonate
Sodium bicarbonate
Potassium carbonate

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

Sulphur dioxide
Carbon dioxide
Nitrous oxide
Hydrocarbons

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