P - Block Elements Test

Result

P - Block Elements Test - 112

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following is the best scientific method to test presence of water in a liquid

A
Taste

B
Smell

C
use of litmus paper

D
use of anhydrous CaSO₄
Question 2
4 / -1

Which of the following sulphate is insoluble in water

A
CaSO₄

B
CdSO₄

C
PbSO₄

D
Bi₂(SO₄)₃
Question 3
4 / -1

When sulphur is boiled with Na₂SO₃ solution, the compound formed is

A
Sodium Sulphide

B
Sodium Sulphate

C
Sodium persulphate

D
Sodium thiosulphate

Solution
Question 4
4 / -1

Number of unpaired electrons in sulphur is

A
2

B
6

C
8

D
1

Solution
Question 5
4 / -1

H₂S reacts with O₂ in restricted supply of O₂ to form

A

B

C

D

Solution
Question 6
4 / -1

Which of the following mixture is chromic acid

A

B

C

D
Question 7
4 / -1

A

B

C

D

Solution
Question 8
4 / -1

Which of the element of the oxygen family is most poisonous to human race

A
O

B
S

C
Se

D
None
Question 9
4 / -1

Super phosphate is the mixture of

A
Calcium phosphate and H₂SO₄

B
Sodium phosphate and H₂SO₄

C
Potassium phosphate and H₂SO₄

D
None
Question 10
4 / -1

Which of the following dissociates to give H ⁺ easily

A
H₂O

B
H₂S

C
H₂Te

D
H₂Se