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Chemistry

Chemistry
Which of the following produces highest amount of energy upon oxidation?

An alkane
Glucose
Fat
Protein

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Chemistry
The major constituent of air is

carbon dioxide
oxygen
nitrogen
hydrogen

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Chemistry
In sugar solution,

Both are solvents
Sugar is solute, water is solvent
Both are solutes
Sugar is solvent, water is solute

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Chemistry
The antiseptic compound present in dettol is

Biothional
Cresol
Iodine
Enloroxylenol

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Chemistry
Percentage of lead in lead pencils is

31-66
40
80

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Chemistry
Nitrogen is an essential constituent of all :

Proteins
Carbohydrates
Vitamins
Fats

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