CHEMISTRY ONLINE TEST 18

1 / 10

Which noble gas is used to fill weather balloons?

Ne

He

Ar

Kr

2 / 10

Noble gases have very low melting and boiling points because —

They are heavy

Weak van der Waals forces

Strong covalent bonds

High electronegativity

3 / 10

Which noble gas is radioactive?

He

Ne

Kr

Rn

4 / 10

The shape of XeF₆ molecule is —

Distorted octahedral

Octahedral

Square pyramidal

Trigonal bypyramidal

5 / 10

Which noble gas is used in flash photography?

Xe

Ne

Ar

Rn

6 / 10

The oxidation state of Xe in XeF₆ is —

+2

+6

+4

+5

7 / 10

Which noble gas forms a compound with oxygen?

He

Ne

Ar

Xe

8 / 10

Which noble gas is used in neon discharge lamps?

He

Ne

Kr

Xe

9 / 10

Noble gases show zero electron affinity mainly because —

They are monoatomic

They have high boiling points

They are gases

They have stable electronic configuration

10 / 10

Which noble gas has the smallest atomic radius?

He

Ne

Ar

Kr

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CHEMISTRY ONLINE TEST 18

CHEMISTRY ONLINE TEST 18 for JEE NEET EAPCET EXAMS

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