Question # 1

A solution whose molarity is known is called:

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Dilute solution

Concentrated solution

Saturated solution

Molar solution

Cathode rays are actually

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Electrons

Protons

Neutrons

Photons

_________ elements naturally occurring.

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92

118

93

117

Atoms are made of sub _________

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Atoms

Molecules

Charge

Atomic particles

____________ agents gains electrons in chemical reaction.

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Reduction

Oxidation

Both

None of these

____________ used to remove nail polish.

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Acetyline

Acetone

H2O

Nil

The bond in covalent compound is ________________

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Covalent

Ionic

Dative

Couple

Li belongs to ________________ block.

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s

p

d

f

Protons carry _________ charge.

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+

_

No

Neutral

Solid particles possess which one of the following motions?

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rotational motions

vibrational motions

translation motions

both translational and vibrational motions

Which one of the following non-metal is lustrous?

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Sulphur

Phosphorus

Iodine

Carbon

Mass per unit volume is:

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Velocity

Dencity

Pressure

Nil

Which one is largest?

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Exo

Peta

Atto

Pico

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