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Chemistry

Chemistry
Identify the metal which is non toxic in nature.

Gold
Cobalt
Chromium
Cadmium

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Chemistry
The nuclear particle having no mass and no charge, but only spin is

Proton
Neutrino
Electron
Meson

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Chemistry
Helium gas is used in gas balloons instead of hydrogen gas because it is

Lighter than hydrogen
More abundant than hydrogen
Non-combustible
More stable

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Chemistry
Element 106 was discovered by

Kurchatove
Rutherford
Lawrence
Seaborg

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Chemistry
The molecular mass of a gas is

Twice its vapour pressure
Equal to its vapour pressure
Half its vapour pressure
Not related to its vapour pressure

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Chemistry
Synthetic detergents are made from

Sodium salt of benzene carboxylic acid
Sodium salt of benzene sulphonic acid
Sodium stearate
Sodium palmitate

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