S and P Block Elements Test

Result

S and P Block Elements Test - 8

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Weekly Quiz Competition

Question 1
1 / -0

Which one the following statement regarding helium is incorrect?

A
It is used to fill gas balloons instead of hydrogen because it is lighter and non – inflammable

B
It is used in gas – cooled nuclear reactors

C
It is used to produce and sustain powerful superconducting reagents

D
It is used as cryogenic agent for carrying out experiments at low temperatures

Solution

Helium is heavier than hydrogen. It is non-inflammable, and therefore safer.
Question 2
1 / -0

The correct order of increasing atomic radius of the following elements is -

A
S < O < Se < C

B
O < C < S < Se

C
O < S < Se < C

D
C < O < S < Se

Solution

In period Left to Right ↓
in group ........... Top to Bottom ↑
Question 3
1 / -0

Which of the following oxides is amphoteric?

A
GeO₂

B
SnO₂

C
CO₂

D
SiO₂

Solution

Theory
Question 4
1 / -0

Which of the following ions is smallest in size -

A
Cl ¯

B
Na+

C
Mg2+

D
S2–

Solution

Greater nuclear charge in Mg²⁺ –10 e^– and 12 p.
Question 5
1 / -0

Aluminium is obtained by -

A
Reduction of Al₂O₃with coke

B
Electrolysis of Al₂O₃ dissolved in Na₃AlF₆

C
Reduction of Al₂O₃ with chromium

D
Heating cryolite and alumina

Solution

Na₃AlF₆ + CaF₂ lower the fusion temperature.
overall electron's is carried out.

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Re-Attempt Weekly Quiz Competition

S and P Block Elements Test - 8

Result

S and P Block Elements Test - 8

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SHARING IS CARING

Question 1

It is used to fill gas balloons instead of hydrogen because it is lighter and non – inflammable

It is used in gas – cooled nuclear reactors

It is used to produce and sustain powerful superconducting reagents

It is used as cryogenic agent for carrying out experiments at low temperatures

Solution

Question 2

S < O < Se < C

O < C < S < Se

O < S < Se < C

C < O < S < Se

Solution

Question 3

GeO2

SnO2

CO2

SiO2

Solution

Question 4

Cl ¯

Na+

Mg2+

S2–

Solution

Question 5

Reduction of Al2O3 with coke

Electrolysis of Al2O3 dissolved in Na3AlF6

Reduction of Al2O3 with chromium

Heating cryolite and alumina

Solution

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GeO₂

SnO₂

CO₂

SiO₂

Reduction of Al₂O₃with coke

Electrolysis of Al₂O₃ dissolved in Na₃AlF₆

Reduction of Al₂O₃ with chromium