D and F Block Elements Test

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D and F Block Elements Test - 30

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Weekly Quiz Competition

Question 1
4 / -1

Which one of the following nitrates will leave behind a metal on strong heating ?

A
Copper nitrate

B
Manganese nitrate

C
Silver nitrate

D
Ferric nitrate

Solution
Question 2
4 / -1

The compound used for gravimetric estimation of Cu (II) is

A
Cu₂(SCN)₂

B
Cu₂O

C
Cu₂I₂

D
Cu₂CO₃
Question 3
4 / -1

Which one of the following characteristics of transition metals is associated with their catalytic activity ?

A
High enthalpy of atomization

B
Paramagnetic behaviour

C
Colour of hydrated ions

D
Variable oxidation states
Question 4
4 / -1

The basic character of the transition metal monoxide follows the order

A
VO > CrO > TiO > FeO

B
CrO > VO > FeO >TiO

C
TiO > FeO > VO > CrO

D
TiO > VO > CrO > FeO
Question 5
4 / -1

Lanthanide for which + 2 and +3 oxidation states are common is

A
La

B
Nd

C
Ce

D
Eu
Question 6
4 / -1

Deep blue complex obtained when copper sulphate is treated with NH₄OH is called

A
Tolllen’s reagent

B
Fehling solution

C
Schweitzer reagent

D
Malaprade reagent
Question 7
4 / -1

Chinese white is

A
ZnO

B
ZnCO₃

C
ZnS

D
ZnS+ BaSO₄
Question 8
4 / -1

Cupric compounds are more stable than their cuprous counterparts in solid state. This is because

A
the endothermic character of the 2nd IP of Cu is not so high

B
size of Cu ²⁺ is less than Cu⁺

C
Cu ²⁺ has stable electronic configurations compared to Cu ⁺

D
the lattice energy released for cupric compounds is must higher than Cu⁺
Question 9
4 / -1

Which is not true for describing the catalytic activity of transition metals?

A
Their ability to adopt multiple oxidation states

B
Their ability to form bonds between reactant molecule and atoms of the surface of catalysts

C
Increasing the concentration of reactants at the catalyst surface

D
Strengthening the bonds in the reacting molecules
Question 10
4 / -1

A
Cr (Z = 24)

B
Mn (Z = 25)

C
Fe (Z = 26)

D
Co (Z = 27)

Solution

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D and F Block Elements Test - 30

Result

D and F Block Elements Test - 30

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Question 1

Copper nitrate

Manganese nitrate

Silver nitrate

Ferric nitrate

Solution

Question 2

Cu2(SCN)2

Cu2O

Cu2I2

Cu2CO3

Question 3

High enthalpy of atomization

Paramagnetic behaviour

Colour of hydrated ions

Variable oxidation states

Question 4

VO > CrO > TiO > FeO

CrO > VO > FeO >TiO

TiO > FeO > VO > CrO

TiO > VO > CrO > FeO

Question 5

La

Nd

Ce

Eu

Question 6

Tolllen’s reagent

Fehling solution

Schweitzer reagent

Malaprade reagent

Question 7

ZnO

ZnCO3

ZnS

ZnS+ BaSO4

Question 8

the endothermic character of the 2nd IP of Cu is not so high

size of Cu 2+ is less than Cu+

Cu 2+ has stable electronic configurations compared to Cu +

the lattice energy released for cupric compounds is must higher than Cu+

Question 9

Their ability to adopt multiple oxidation states

Their ability to form bonds between reactant molecule and atoms of the surface of catalysts

Increasing the concentration of reactants at the catalyst surface

Strengthening the bonds in the reacting molecules

Question 10

Cr (Z = 24)

Mn (Z = 25)

Fe (Z = 26)

Co (Z = 27)

Solution

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Cu₂(SCN)₂

Cu₂O

Cu₂I₂

Cu₂CO₃

ZnCO₃

ZnS+ BaSO₄

size of Cu ²⁺ is less than Cu⁺

Cu ²⁺ has stable electronic configurations compared to Cu ⁺

the lattice energy released for cupric compounds is must higher than Cu⁺