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Chemistry

Chemistry
Aluminium can be purified by

Oxidation
Ozonolysis
Electrolysis
Distillation

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Chemistry
The elements in the modern Periodic table are arranged according to their

Neutron number
Mass number
Atomic Weight
Atomic number

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Chemistry
Which of the following is used in dating archaeological findings ?

614C
818O
92235U
13H

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Chemistry
The apparatus used to test acidity of aqueous solution is

PH meter
Ammeter
Acidmeter
Hygrometer

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Chemistry
When a spoon is to be electroplated with nickel the spoon is

Made cathode and a pure nickel red, the anode
Made anode and a pure nickel rod, the cathode
Dipped in a nickel sulphate solution
Coated with nickel sulphate and dried

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Chemistry
The value of Avogadro Number is

6.023 × 1023
6.023 × 1025
6.023 × 1024
6.023 × 1022

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