Question # 1

Which one of the following is an electron deficient molecule?

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HN₃

BF₃

N₂

O₂

It is a strong electrolyte

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H2O

CH3COOH

NaOH

C6H6

The types of solutions on the basis of their physical states are

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3

6

9

12

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

_________ shells of noble gases is complete.

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Outer most

2

1

Nil

The cathode of Nelson's cell is made up of

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C

Zn

Cu

Fe

Group runs from ________________

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Top to bottom

Left to right

Top to right

Bottom to left

The simplest of these has formula:

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C60

C10

V20

C30

There are _________ types of bonds.

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1

2

3

4

The property of being polar in nature is called:

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Polarity

Chemistry

Both

Nil

Which one of the following is the weakest force among the atom?

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ionic force

metallic force

intermolecular force

covalent force

4^th and 5^th period of the long form of periodic table are called

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short periods

Normal periods

Long periods

Very long periods

Halogens with metals for

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Ionic bond

Covalent bond

Dative covalent bond

Metallic bond

Which one of the following is brittle?

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Sodium

Aluminum

Selenium

Magnesium

________________ solids are hard.

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Ionic

Covalent

Coordinate

Nil

________________ elements were discovered in year 1800.

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34

35

36

37

___________ is a pure substance that can be broken down.

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Matter

Element

Mass

Mixture

Es is symbol of :

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Erbium

Einsteinium

Europium

Fremium

Which one is least oxidizing agent?

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F

CI

I

Br

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