Question # 1

The elements of group 3 to 12 are called

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Normal elements

Transition elements

Radioactive elements

None of these

Ionic compound are ________________ in water.

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insoluble

Soluble

Covalent

Solvent

The No. of atoms in 1 mole of carbiton is

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6.02 x 1021

6.02 x 1022

6.02 x 1023

6.02 x 1024

It is a good reducing agent

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Fe

H

C

O

____________ are good conductors of electricity.

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Covalent compound

Metals

Both

None of these

NaCl + H2O is ____________ solutions.

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Aqueous

Binary

H2O

Nil

4th & 5th consist of ________________ elements.

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8

18

32

infinite

The right most position in the periodic table is occupied by:

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Alkall metals

Alkaline earth metals

Translation metals

Noble gasses

________________ is triangular in shape.

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BCL3

H2O

CO2

NH3

Identify when pair has polar covalent bonds:

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O₂ and Cl₂

H₂O and N₂

H₂O and C₂H₂

H₂O and HCI

Intermolecular forces are of three types and are collectively called ____________

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Nelson' forces

Vander Waal's forces

Neurons

Nil

One atmospheric pressure is equal to how many pascals?

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101325

10325

106075

10523

The maximum no.of electrons that can be accommodated in M shell are

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2

8

18

32

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