Question # 1

Which halogen memebr exists in a liquid stte at room temperature

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Bromine

Chlorine

Fluroine

Iodine

Whcih one of the following wil show negligible effect of termperture on its solubility.

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KCl

KNO3

NaCl

NaNO3

Formation of NO is

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Exothrmic

Endothermic

No Heat Change

None of these

What does keep the particles present in the nucleus intact.

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Particles are held together by dipolar force

Particles are held together by wee nuclear force

Particles are held together by strong nuclear force

Particles are held together by electrostatic force

The branch of chemistry that focuses on the study of polymers, their types properties, uses is called.

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Industrial chemistry

Polymer chemistry

Organic chemistry

Astrochemistry

How many electrons can be accommodated at the most in the third shell of the elements.

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8

10

18

32

A state of matter whose properties are between those of liqids and crystalline solids.

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Plasma

dark matter

Liquid crystal

Supercriticl fluid

Whcih law is obeyed in chemicla calculations?

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Law of mass action

Law of conservationof mass

Law of definite proportion

Both a and b

A substance formed when two or more different elements combine chemically.

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Compund

Solution

Element

Atom

The mass number of sodium is.

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19

31

27

23

The formaton ionic bond between two ions is due to.

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Hydrogen bonding

Metalic force

Electrostatic forces

All of the above

Period nuebr tells abou the

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No. of valance electrons

No. of electronic shells

Both a and b

None of the above

Whcih period of the modern periodic table is considered as incomplete period.

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4th

5th

6th

7th

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