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Chemistry

Chemistry
Brass is made of

Copper and zinc
Tin and lead
Copper and tin
Copper, tin and zinc

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Chemistry
The first metal used by a man was

Bronze
Brass
Silver
Copper

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Chemistry
Which of the following is not a derivative of barbituric acid

Veronal
Nembutal
Equanil
Amytal

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Chemistry
Which of the following metals can displace copper from copper sulphate solution ?

Gold
Mercury
Platinum
Iron

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

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

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Chemistry
When Hydrogen starts burning in air, it produces ?

Methane
Carbonic Acid
Water
Ammonia

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MORE MCQ ON Chemistry

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