Question # 1

When an electronegative element combines electropositive element the type of bonding is

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covalent

ionic

polar covalent

coordinate covalent

Brine is an aqueous solution of

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NaCI

NaOH

AgNO3

CaO

During the formation of water from hydrogen and oxygen, which of the following does not occur?

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Hydrogen has oxidized

oxygen has reduced

oxygen gains electrons

hydrogen behaves as oxidizing agent

Considering the electronic configuration of atoms which atom with the given atomic number will be the most stable one?

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6

8

10

12

Tyndall effect is due to:

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block of beam of light

non - scattering of beam of light

scattering of beam of light

passing through beam of light

The bound between ionic compound is ............ .

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Covalent

Co-ordinate

Ionic

Nil

___________ is a pure substance that can be broken down.

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Matter

Element

Mass

Mixture

Concentration is ratio of:

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solvent to solute

solute to solution

solvent to solution

both a and b

Which one is least oxidizing agent?

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F

CI

I

Br

Along the period which one of the following decrease:

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Atomic radius

ionization energy

electron affinity

electronegative

Which one of the following is liquid in solid solution?

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sugar in water

butter

opal

fog

One carbon is _________ times heavier than hydrogen.

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12

13

14

15

Group runs from ________________

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Top to bottom

Left to right

Top to right

Bottom to left

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