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Chemistry

Chemistry
0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by

3
7
6
4

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Chemistry
Which is the purest commercial form of iron ?

Pig iron
Steel
Stainless steel
Wrought iron

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Chemistry
Helium is added to the oxygen supply of deep sea divers because it is

Readily miscible with oxygen
Less poisonous than nitrogen
Lighter than nitrogen
Less soluble in blood than nitrogen at high pressure

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Chemistry
PH value between 6.5-7.5 makes the soil

Basic
None of these
Acidic
Neutral

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Chemistry
The chemical bahaviour of an atom depends upon

The number of protons in its nucleus
The number of neutrons in the nucleus
The number of nucleons in the nucleus
The number of electrons orbiting around the nucleus

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Chemistry
Aqueous solution of which of the following is a good conductor of electricity

Glucose
Ammonium acetate
Ammonia
Acetic acid

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MORE MCQ ON Chemistry

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