P - Block Elements Test

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P - Block Elements Test - 66

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Weekly Quiz Competition

Question 1
4 / -1

Noble gases are adsorbed by

A
anhydrous calcium chloride

B
ferric hydroxide

C
conc. H₂SO₄

D
activated coconut charcoal
Question 2
4 / -1

In clathrates of xenon with water, the nature of bonding between xenon and water molecule is

A
dipole induced dipole interaction

B
coordinate

C
hydrogen bonding

D
covalent
Question 3
4 / -1

In Fischer-Ringe's method of separation of noble gas mixture from air,.......... is used.

A
90% CaC₂ + 10% CaCl₂

B
coconut charcoal

C
soda lime + potash solution

D
90% CaCO₃ + 10% urea
Question 4
4 / -1

White phosphorus reacts with caustic soda. The products are PH₃ and NaH₂PO₂.This reaction is an example of

A
Oxidation

B
Reduction

C
Oxidation and reduction

D
Neutralisation
Question 5
4 / -1

Which of the following fluorides does not exist ?

A
NF₅

B
PF₅

C
AsF₅

D
SbF₅
Question 6
4 / -1

Which of the following elements is most metallic.

A
P

B
As

C
Sb

D
Bi
Question 7
4 / -1

The electronegativity of the following elements increases in the order

A
C, N, Si, P

B
N Si C, P

C
Si, P, C, N

D
P, Si, N, C
Question 8
4 / -1

Which one of the following is pyrophosphoric acid ?

A
H₃PO₄

B
H₄P₂O₇

C
H₄P₂O₅

D
H₃PO₄
Question 9
4 / -1

Which one of the following compounds does not exist?

A
NCl₅

B
AsF₅

C
SbCl₅

D
PF₅
Question 10
4 / -1

Each of the following is true of white and red phosphorus except that they

A
Are both soluble in CS₂

B
Can be oxidized by heating in air

C
Consist of the same kind of atoms

D
Can be converted into one another.

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Re-Attempt Weekly Quiz Competition

P - Block Elements Test - 66

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P - Block Elements Test - 66

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Question 1

anhydrous calcium chloride

ferric hydroxide

conc. H2SO4

activated coconut charcoal

Question 2

dipole induced dipole interaction

coordinate

hydrogen bonding

covalent

Question 3

90% CaC2 + 10% CaCl2

coconut charcoal

soda lime + potash solution

90% CaCO3 + 10% urea

Question 4

Oxidation

Reduction

Oxidation and reduction

Neutralisation

Question 5

NF5

PF5

AsF5

SbF5

Question 6

P

As

Sb

Bi

Question 7

C, N, Si, P

N Si C, P

Si, P, C, N

P, Si, N, C

Question 8

H3PO4

H4P2O7

H4P2O5

H3PO4

Question 9

NCl5

AsF5

SbCl5

PF5

Question 10

Are both soluble in CS2

Can be oxidized by heating in air

Consist of the same kind of atoms

Can be converted into one another.

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conc. H₂SO₄

90% CaC₂ + 10% CaCl₂

90% CaCO₃ + 10% urea

NF₅

PF₅

AsF₅

SbF₅

H₃PO₄

H₄P₂O₇

H₄P₂O₅

H₃PO₄

NCl₅

AsF₅

SbCl₅

PF₅

Are both soluble in CS₂