P - Block Elements Test

Result

P - Block Elements Test - 103

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Weekly Quiz Competition

Question 1
4 / -1

The element evolving two different gases on reaction with conc. H₂SO₄ is ______.

A
P

B
C

C
Hg

D
S

Solution
Question 2
4 / -1

Carborundum is obtained when silica is heated at high temperature with

A
C

B
CO

C
CO₂

D
CaCO₃

Solution
Question 3
4 / -1

Lead pipes are corroded quickly by

A

B

C
Acetic Acid

D
Water

Solution
Question 4
4 / -1

Which is the correct oxidation state of lead

A
+2, +4

B
+1, +2

C
+3, +4

D
+4
Question 5
4 / -1

Quartz is an example of

A
Chain Silicate

B
Sheet Silicate

C
Cyclic Silicate

D
3D network Silicate
Question 6
4 / -1

Which of the following elements does not form stable diatomic molecules

A
Iodine

B
Phosphorous

C
Nitrogen

D
Oxygen
Question 7
4 / -1

A

B

C

D
Question 8
4 / -1

When heated NH₃ is passed over CuO gas evolved is

A
N₂

B
N₂O

C
HNO₃

D
NO₂
Question 9
4 / -1

When concentrated nitric acid is heated it decomposes to give

A
O₂ and N₂

B
NO

C
N₂O₅

D
NO₂ and O₂

Solution
Question 10
4 / -1

Which of the following metal produces nitrous oxide with dil HNO₃

A
Fe

B
Zn

C
Cu

D
Ag

Solution