Question # 1

In the redox reaction between zn and HCI. the oxidizing agent is:

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zn

H⁺

C

H²

Which molecule has single covalent bond?

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O₂

N₂

CI₂

CO₂

Which of following does not belong to p-block?

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IIIA

IVA

VA

VIB

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

PCL5 is ________________ shaped.

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Bipyromidal

Angular

Triangular

Linear

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

Electrons carry _________ charge.

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+

_

Neutral

Bouble Positive

How many number of electrons take part in triple covalent bond?

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2

4

6

8

Which one of the following is an electron deficient molecule?

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HN₃

BF₃

N₂

O₂

Fog is an example of ____________ in gas.

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Solid

Liquid

Gas

Plasma

Sodium has ________________ no. of protons.

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11

12

13

14

Bucky balls are ____________ allotropic forms of carbon.

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1st

2nd

3rd

4th

The no. of electrons in the valence shell of noble gases are

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2

4

8

2 or 8

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