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CHEMISTRY

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

Lime
Kerosene
Oxalic acid solution
Petrol

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Chemistry
Which is not an anasthetic agent in surgical operations?

Ether
Chloroform
Nitrous oxide
Acetone

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Chemistry
Synthetic detergents are prepared from

Sodium salts of higher fattyacids
Glycerides
Potassium salts of higher fatty-acids
Hydrocarbons of petroleum

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Cement
Glass
Gun powder
Paint

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Chemistry
Iodex, a pain relief balm, has the smell of ________ .

Methyl salicylate
Ethyl salicylate
Butyl salicylate
Propyl salicylate

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