P - Block Elements Test

Result

P - Block Elements Test - 46

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Weekly Quiz Competition

Question 1
4 / -1

Sodium pyrophosphate is represented by which of the following formula ?

A
Na₂ P₂ O₄

B
Na₄ P₂ O₅

C
Na₄ P₂ O₇

D
Na₂ P₂ O₅

Solution
Question 2
4 / -1

Which are the products obtained when ammonia is reacted with excess chlorine ?

A
N₂ and NCl₃

B
N₂ and HCl

C
N₂ and NH₄Cl

D
NCl₃ and HCl

Solution
Question 3
4 / -1

The basicity of H₃ PO₄ is

A
2

B
3

C
4

D
5

Solution
Question 4
4 / -1

Zinc and cold dil.HNO₃ reacts to produce

A
NO

B
NO₂

C
NH₄ NO₃

D
ZnNO₃

Solution
Question 5
4 / -1

The treatment of Cu with dilute HNO₃ gives

A
N₂O

B
NO

C

D
NO₂

Solution
Question 6
4 / -1

Which of the following oxyacids of phosphorus is a reducing agent and monobasic ?

A
H₃PO₂

B
H₃PO₃

C
H₃PO₄

D
H₄P₂O₆

Solution
Question 7
4 / -1

Pnicogens are the elements of group

A
15

B
13

C
8

D
zero
Question 8
4 / -1

Which of the following forms vortex ring?

A
P₂O₅

B
PH₃

C
NH₃

D
P₄O₁₀

Solution
Question 9
4 / -1

Pb reacts with dilute HNO₃ gives

A
NO

B
NH₄ NO₃

C
N₂ O₅

D
NO₂

Solution
Question 10
4 / -1

Which gas is evolved by the treatment of magnesium with very dilute solution of HNO₃

A
N₂

B
NO₂

C
H₂

D
H₂O

Solution