Question # 1

Bucky Balls are used as ________________

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Cutting

Grafting

Lubricants

Nil

Which gas will diffuse faster than others?

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Hydrogen

Oxygen

Chlorine

Nitrogen

The transition temperature of sulphur is:

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96 °C

250 °C

18 °C

218 °C

P1V1 = P2V2 is mathematical form of ____________ law.

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Bohr's

Charles

Boyle's

Nil

In silver plating Anode is made of:

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Gold

Ag

Neon

Nil

Elements are represented by chemical _________

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Abbreviation

Unit

Symbols

It can be represented

Which has metallic bond?

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H

Na

HCI

P

Copper extracted from its ore is ____________ % pure.

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98%

99%

96%

Nil

The solubility of which salt increases in heating?

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Li₂SO₄

Ce₂(SO₄)₃

NaCI

KCI

Which one of the following is the weakest force among the atom?

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ionic force

metallic force

intermolecular force

covalent force

Modern periodic table can be classified into ________________.

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Elements

s, p, d, f blocks

Periods

ROWS

Carbon forms ____________ bonds in diamonds.

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4

3

6

9

Density of a gas increases, when its:

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temperature is increased

pressure is increased

volume is kept constant

none of these

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