P - Block Elements Test

Result

P - Block Elements Test - 73

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Weekly Quiz Competition

Question 1
4 / -1

Bromine can be liberated form potassium bromide solution by the action of

A
Iodine solution

B
Chlorine water

C
Sodium chloride

D
Potassium iodide
Question 2
4 / -1

Which of the following is the strongest acid ?

A
ClO₃ (OH)

B
ClO₂ (OH)

C
SO (OH)₂

D
SO₂ (OH)₂
Question 3
4 / -1

Bleaching powder reacts with a few drops of conc. HCl to give

A
Chlorine

B
Hypochlorous acid

C
Calcium oxide

D
Oxygen

Solution
Question 4
4 / -1

Correct order of the size of iodine species is

A
I > I^‒ > I⁺

B
I > I⁺ > I^‒

C
I⁺ > I^‒ > I

D
I^‒ > I > I⁺
Question 5
4 / -1

Oxidising action increases in the following order

A
Cl < Br < I < F

B
Cl < I < Br < F

C
I < F < Cl < Br

D
I < Br < Cl < F
Question 6
4 / -1

A

B

C

D

Solution
Question 7
4 / -1

The bleaching action of chlorine is due to

A
Reduction

B
Hydrogenation

C
Chlorination

D
Oxidation
Question 8
4 / -1

A 500 gm.toothpaste sample has 0.2 gm fluoride concentration.What is the concentration of F^‒ ions in terms of ppm level ?

A
250

B
200

C
400

D
1000
Question 9
4 / -1

The type of bonding in HCl molecule is

A
Pure covalent

B
Polar covalent

C
Highly polar

D
H-bonding
Question 10
4 / -1

Which of the following bonds will be most polar?

A
N – Cl

B
O – F

C
N – F

D
N ‒ N