Question # 1

Pure alkalis metals can be cut siply by knife but iron cannot bccause of alkali meals have

Choose an answer

Non metalic bonding

Strong metallic bonding

Weak metallic bonding

Moderate metqllic bonding

17th group elements ae known as

Choose an answer

Alkaki metals

Alkaline earth metals

Noble gases

Halogens

How many electrons can nitrogen accept in its outermost shell.

Choose an answer

2

3

4

5

All transition elements belong to

Choose an answer

s and p block

d- block

f-block

d and f block

Uni of electron affinity is.

Choose an answer

k J mol-1

k jmol

pm

Newton

Whcih period of the modern periodic table is considered as incomplete period.

Choose an answer

4th

5th

6th

7th

Which group elements has low ionization energies.

Choose an answer

Halogens

Noble gases

Alkaline Earth Metals

Alkali Metals

The unit of ionization energy is

Choose an answer

nm and pm

kJ mol-1

Pascal

Newton

Which element has the highest melting point.

Choose an answer

K

Cs

Na

Rb

Elements with atomic no .58 to 71 are called.

Choose an answer

Actinides

Lanthanides

Both a and b

None of these

Atomic number of lanthanum is

Choose an answer

57

58

59

60

How many elecntrons are present in the valence shell of group 1 elements.

Choose an answer

1

2

3

4

How many elements are present in each 4th and 5th period.

Choose an answer

2

8

32

18

More Classes

Other Links

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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer