Question # 1

H8+ _ Cl8- , the charge on H is.

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_

+

Neutral

Nil

Mixture has _________ types.

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3

2

1

No types

The no.of elements in the first period is

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2

8

18

23

4th & 5th consist of ________________ elements.

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8

18

32

infinite

Which gas will diffuse faster than others?

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Hydrogen

Oxygen

Chlorine

Nitrogen

The lowest energy level is

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K

L

M

N

Which one of the following non-metal is lustrous?

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Sulphur

Phosphorus

Iodine

Carbon

In metal hydrides, the oxidation number of hydrogen is

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+1

-1

+2

-2

Which one of the following solution contains more water?

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2M

IM

0.5M

0.25M

When a saturated solution is diluted it tuns into:

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supersaturated solution

saturated solution

a concentrated solution

unsaturated solution

Atoms form chemical bonds to attain the electronic configuration of

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Halogens

Noble gases

Alkali metals

Alkaline earthmetals

Spontaneous chemical reactions take place in:

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electrolytic cell

Galvanic cell

Nelson' s cell

downs cell

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