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General Science

General Science
Tetraethyl lead is used as

Pain Killer
Mosquito Repellent
Fire Extinguisher
Petrol Additive

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General Science
How does common salt help in separating soap from the solution after saponification?

By increasing density of Soap
By decreasing solubility of Soap
By increasing solubility of Soap
By decreasing density of Soap

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General Science
Very small time intervals are accurately measure by

White dwarfs
Atomic clocks
Pulsars
Quartz clocks

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General Science
The isotope of uranium capable of sustaining chain reaction is

U-238
U-245
U-235
U-239

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General Science
The element common to all acids is

Oxygen
Sulphur
Hydrogen
Carbon

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General Science
The gas usually filled in the electric bulb is

None of the listed here
Nitrogen
Oxygen
Hydrogen

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