Question # 1

The total number of transition element is

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10

14

40

58

Which one of the following elements has no variable valency.

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Zinc

Iron

cobalt

Manganese

The type of hybridization in PCl3 is.

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dsp2

sp3

dsp3

d2sp3

f-block elements are also called

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non typical transition elements

outer transition elements

normal transition elements

inner transition elements

In IUPAC system, the name of K4[Fe(CN)6] is

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Potassium ferricynaide

Potassium ferrocynide

Potassium Hexacyanoferrate (II)

Poatssium hexacaynoferrate (III)

The conversion of potassium magnate to potassium permanganate by passing Cl2 Through aqueous solution of K2MnO4 is called.

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Contact process

Open hearth process

Stadeler's process

Thermite process

Which is not coloured ion

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SO4^-2

MnO4-3

CrO4^-2

Cr2O7^-2

f - block elements are also called.

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Non typical transition elements

Outer transition elements

Inner transition elements

None of true

The percentage of carbon in different types of iron products is in the order of

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cast iron > wrought iron > steel

wrought iron > steel > cast iron

cast iron > steel > wrought iron

cast iron = steel > wrought iron

Which complex shows zero oxidation state of the transition metal.

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[Fe(CO)5]

K3[Fe(CN)6]

K2[Fe(CN)6]

[Cu(NH3)4]SO4

The strength of binding energy of transition elements depends upon

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number of electron pairs

number of unpaired electron pairs

number of neutrons

number of protons

Element of which group are called non typical transition elements.

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IB

II B

II A

VII B

The total number of translation elements is

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10

14

40

65

Stainless steel is

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Compound

An element

Mixture

100% pure iron

The colour of transition metal complexes is due to

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d-d transition of electrons

Paramagnetic nature of transition elements

Ionization

Loss of s -electrons

The substance which is added to remove impurities is known as

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Slag

Flux

Ore

Gangue

Co-ordination number of Pt in Pt Cl(NO₂)(NH₃)₄

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2-

4

1

6

Which of the following is a typical transition metal

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Sc

Y

Ra

Co

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