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Chemistry

Chemistry
The ore of Aluminium is

Fluorspar
Hematite
Bauxite
Chalco pyrites

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Chemistry
Isobars are lines joining places having equal

Height above sea-level
Population
Pressure
Rainfall

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Chemistry
Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?

Methane
Helium
Hydrogen
Nitrogen

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Chemistry
Ethanol containing 5% water is known as

Methylated alcohol
Denatured spirit
Rectified spirit
Power alcohol

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Chemistry
Which one of the following organic compounds has fruity smell?

Ether
Alcohol
Ester
Aldehyde

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Chemistry
Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives

Copper at cathode and anodes dissolve to give copper
Copper at cathode and oxygen at anode
Copper at anode and oxygen at cathode.
Hydrogen at cathode and oxygen at anode

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