Question # 1

Which is the softtest metal.

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Zn

Ca

Na

Al

Which of the following grops contain alkaline earth metals.

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I A

II A

VII A

VIII A

The distance between the neclei of two carbon atoms in its elemetnal from is

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150 pm

152 pm

154 pm

156 pm

The elements of a group show properties.

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Same

Different

Both a and b

None of these

The horizontal lines present in the priodic table are called.

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Groups

Periods

Both a and b

None of these

How many elements are present in 7th period.

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2

8

18

23

Mark the icorrect statement about ionization energy.

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It is measured in kJmol-1

It is absorption of energy

It decreased in a period

It decrese in a group

Sodium metal has electrons

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10

11

12

14

/which of the followign elements is presnt in group IA.

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Lithium

Hydrogen

Sodium

All of these

Group nuebr tells about the

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Number of shells

Number of valence electrons

Both a and b

None of these

Actinide series starts after the element

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Actinium

Lanthanum

Osmum

Silver

How many elements are prsent in each 2nd and 3rd period.

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2

32

18

8

Actinidws belong to period.

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4th

5th

6th

7th

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Chemistry 9th Class English Medium Unit 8 Online Test MCQs With Answers

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