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General Science

General Science
Which among the following is a positively charged particle emitted by a radioactive element?

Gamma ray
Cathode ray
Beta ray
Alpha ray

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General Science
Which of the following are the ingredients of gun metal?

Iron, Zinc and Titanium
Copper, Tin and Zinc
Iron, Brass and Tin
Iron and Tin

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General Science
Mesons are found in

X-rays
Laser beam
Cosmic rays
Gamma rays

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General Science
Water is a good solvent of ionic salts because

It has no colour
It has a high boiling point
It has a high specific heat
It has a high dipole moment

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General Science
Quartz crystals normally used in quartz clocks etc. is chemically

Sodium Silicate
Germanium Oxide
Silicon Dioxide
A mixture of Germanium Oxide and Silicon dioxide

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General Science
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Argon
Krypton
Xenon
Helium

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