P - Block Elements Test

Result

P - Block Elements Test - 18

Score
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Rank
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Weekly Quiz Competition

Question 1
4 / -1

Nessler’s reagent is used for the detection of

A

B

C

D

Solution
Question 2
4 / -1

Ostwald’s process for the manufacture of nitric acid involves

A
Oxidation of N₂ to NO

B
Oxidation of NH₃ to NO

C
Combination of N₂ and H₂

D
Passage of steam over red hot coke

Solution
Question 3
4 / -1

When iron is heated with conc. HNO₃

A
NO is formed

B
N₂O is formed

C
H₂ is evolved

D
It becomes passive
Question 4
4 / -1

Which of the following metals is/are rendered passive on treatment with conc. HNO₃?

A
Iron

B
Aluminium

C
Chromium

D
All
Question 5
4 / -1

A
Adding NH₃ to the equilibrium mixture

B
Removing NH₃ from the equilibrium mixture

C
Increasing the concentration of N₂, H₂ and NH₃ equally

D
None of the above
Question 6
4 / -1

The gas obtained when bleaching powder is treated with warm concentrated solution of NH₃ is

A
Cl₂

B
N₂

C
NO

D
H₂

Solution
Question 7
4 / -1

Which of the following is a solid compound ?

A
N₂O

B
N₂O₄

C
NO

D
N₂O₅
Question 8
4 / -1

Nitrous oxide is formed by heating

A
HNO₃

B
NH₄NO₃

C
AgNO₃

D
NH₄NO₂

Solution
Question 9
4 / -1

Which of the following oxides of nitrogen is obtained when copper is heated with concentrated nitric acid ?

A
N₂O₅

B
N₂O

C
NO₂

D
NO

Solution
Question 10
4 / -1

Which of the following elements has the greatest tendency to form A^3- ions ?

A
Phosphorus

B
Nitrogen

C
Bismuth

D
Antimony