Question # 1

There are ____________ types of solids.

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1

2

6

4

Which has metallic bond?

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H

Na

HCI

P

The shape of H2O is ________________

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Angular

Linear

Triangular

All of above

The core of the earth is ____________ than crust.

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LIghter

Heavier

Both

Nil

For ________________ "like dissolves like".

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Metals

Bonds

Solubility

Nil

Metals lose their electrons easily because:

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They are electronegative

They have electron affinity

They are electropositive

Good conductors of heat

PCL5 is ________________ shaped.

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Bipyromidal

Angular

Triangular

Linear

Metals are ________________

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Liquid

Solid

Gas

Malleable

The bond between two atoms will be ionic if the difference between their electronegativities is:

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Less than 1.7

Greater than 1.7

Zero

Less than 1.2

Brine is an aqueous solution of

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NaCI

NaOH

AgNO3

CaO

How many covalent bond does C₂H₂ molecule have?

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two

three

four

five

The other name of modern periodic table is ________________ of periodic table.

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Long form

Simplified

Simplest

Nil

Gases have ____________ shape.

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Fixed

Not Fixed

Nil

Both a & b

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