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Chemistry

Chemistry
Zone refining is used for the purification of

Au
Cu
Ag
Ge

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Chemistry
Sodium Carbonate is commonly known as

Washing Soda
Caustic Potash
Baking Soda
Caustic Soda

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Chemistry
What is the atomic number of Oxygen

22
8
5
12

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Chemistry
An emulsion is a colloidal solution of

Solid in liquid
Solid in Solid
Liquid in liquid
Gas in solid

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Chemistry
Spontaneous change is one in there is:

An increase in Internal energy
A lowering of entropy
Increase in free energy
A lowering of free energy

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Chemistry
Iodine value is used to estimate

Unsaturation in oil
Alkali content in oil
Hydroxyl groups in oil
Carboxylic groups in oil

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MORE MCQ ON Chemistry

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