Question # 1

Which one of the following shell consists of three subshells?

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K- shell

M-Shell

L-shell

M-shell

Metal can form ions carrying charges:

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Uni-positive

Di-positive

Tri-Positive

All of them

The symbol of lead us

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As

Pb

Sb

Na

1 atm = ?

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1 pascal

760 mm of Hg

1 atm

1 Nm^-2

____________ solids are arranged in 3 dimension.

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Crystalline

Amorphous

Both

None

Sort out a compound from the following

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Air

Salt

Ice-cream

Iron

One carbon is _________ times heavier than hydrogen.

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12

13

14

15

Intermolecular forces are of three types and are collectively called ____________

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Nelson' forces

Vander Waal's forces

Neurons

Nil

Atoms as a whole is _________

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+

_

No

Neutral

Carbon exists in ________________ allotropic forms.

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1

2

3

4

.................... of an atom is not fixed.

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Size

Mass

Electronegativity

Nuclear char

Half life of C-14 ________________ years.

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5800

5700

5600

5500

..................... is property of metals.

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Gases

Lustrous

Solids

Nil

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