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Chemistry

Chemistry
What do you understand by the term Espuma ?

Foam
Salt
Calcium
Soap

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Chemistry
The gas used in the artificial ripening of fruits is

Methane
Acetylene
Ethane
Butane

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Chemistry
Indane gas is mixture of

Butane and oxygen
Butane and hydrogen
Methane and oxygen
Butane and propane

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Chemistry
Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ?

Borax
Hydrogen peroxide
Saltpetre
Sodium chloride

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Chemistry
Milk is a colloidal system in which:

Fat is dispersed in water
Fat is dissolved
Fat and water are dispersed in each other
Water is dispersed in fat

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Chemistry
Which of the following is the main nitrogenous waste in humans ?

Ammonium Nitrate
Urea
Uric Acid
Ammonia

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