Question # 1

Li belongs to ________________ block.

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s

p

d

f

Which one of the following halogen has lowest electronegative?

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fluorine

chlorine

bromine

iodine

The 2nd and third periods are called

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short period

Normal period

Long period

Very long period

Which element has highest electronegativity?

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CI

F

Br

I

The repetition of a property after a certain interval is:

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Periodicity

Properties

Periodicity of properties

None

Along the period which one of the following decrease:

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Atomic radius

ionization energy

electron affinity

electronegative

4th & 5th consist of ________________ elements.

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8

18

32

infinite

Mendeleev periodic table was based upon the:

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electronic configuration

atomic mass

atomic number

completion of a subshell

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

Which of following does not belong to p-block?

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IIIA

IVA

VA

VIB

________________ is the shortest period.

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6th

8th

2nd

1st

Mark the incorrect statement about ionization energy:

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it is measured in Kjmol^-1

it is absorption of energy

it decreases in period

it decreases in a group

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

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Size

Mass

Electronegativity

Nuclear char

The no. of periods in modern periodic table are

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7

11

18

23

Long form of periodic Table is constructed the basis of:

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Mendeleev postulate

atomic number

atomic mass

mass number

________________ elements were discovered in year 1800.

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34

35

36

37

Transition elements are:

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all gases

all metals

all non-metals

all metalloids

Th name of chemist who arranged all the elements in the periodic tale is :

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J.Newlands

Columb

Einstine

None of these

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9th Class Chemistry Chapter 3 Periodic Table and Periodicity of Properties English Medium KPK Boards Online Mcqs MCQs With Answers

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