P - Block Elements Test

Result

P - Block Elements Test - 52

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following is used to prepare Cl₂ gas at room temperature from concentrated HCl ?

A
MnO₂

B
H₂S

C
KMnO₄

D
Cr₂O₃

Solution
Question 2
4 / -1

In halogen's group which element has highest electron affinity ?

A
F

B
Cl

C
Br

D
I
Question 3
4 / -1

Which one is the anhydride of HClO₄?

A
ClO₂

B
Cl₂O₇

C
Cl₂O

D
Cl₂O₆

Solution
Question 4
4 / -1

In the manufacture of bromine from sea water, the mother liquor containing bromide is treated with

A
carbon dioxide

B
chlorine

C
iodine

D
sulphur dioxide

Solution
Question 5
4 / -1

ClO^- disproportionate into

A
Cl^- and O

B
Cl^- and ClO₃^-

C
Cl and O

D
Cl^- and O^-

Solution
Question 6
4 / -1

The following species will not exhibit disproportionation reaction

A

B

C

D

Solution
Question 7
4 / -1

Correct order of electron affinities of halogens is

A
F > Cl > Br > I

B
I > Br > Cl > F

C
Cl >F > I > Br

D
Cl > F > Br > I
Question 8
4 / -1

Which one of the following reactions does not occur ?

A
F₂ + 2Cl^‒ → 2F^‒ + Cl₂

B
Cl₂ + 2F^‒ → 2Cl^‒ + F₂

C
Br₂ + 2I^‒ → 2Br^‒ + I₂

D
Cl₂ + 2Br^‒ → 2Cl^‒ + Br₂

Solution
Question 9
4 / -1

Which of the following pairs has bleaching property ?

A
O₃ and NO₂

B
O₃ and H₂S

C
SO₂ and Cl₂

D
Cl₂ and NO₂

Solution
Question 10
4 / -1

The correct order of heat of formation of halogen acids is

A
HI > HBr > HCl > HF

B
HF > HCl > HBr > HI

C
HCl > HF > HBr > HI

D
HCl > HBr > HF > HI