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Chemistry

Chemistry
What is the mass percentage of carbon in carbon dioxide (CO2)

0.158
0.273
0.201
0.323

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Chemistry
An emulsion is a colloid of a

Gas in a liquid
Liquid in a liquid
Liquid in a gas
Gas in a solid

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Chemistry
The antiseptic compound present in dettol is

Biothional
Iodine
Enloroxylenol
Cresol

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

An alkane
Glucose
Fat
Protein

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Chemistry
The method that cannot be used for removing permanent hardness of water is

boiling
distillation
adding sodium carbonate
adding caustic soda

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Chemistry
Hardness of the water is commonly measured in terms of

Calcium carbonate equivalents
Magnesium sulphate equivalents
Magnesium carbonate equivalents
Calcium sulphate equivalents

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MORE MCQ ON Chemistry

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