Question # 1

The colour of transition metal complexes

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d-d transitions of electrons

paramagnetic nature of transition elements

ionization

loss of s-electron

Mild steel contains carbon percentage

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0.1 - 0.2%

0.3 - 0.7%

0.7 - 1.5%

1.6 - 2.0%

d -block elements which show anomalous configuration in first series are

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Cr and Ni

Cr and Cu

Cu and CO

Fe and Ni

Which one of the following elements has no variable valency.

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Zinc

Iron

cobalt

Manganese

Which of the following is non-typical transition metal

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Fe

Mn

Zn

Ni

The variation pattern in ionic radii of first transition series shows

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A regular increase

A regulars decrease

No regular pattern

A regular decrease and than alight increase

Total number of d-block elements are

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10

20

30

40

Which of the following is a typical transition metal

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Sc

Y

Ra

Co

Co-ordination number of Cu in

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Zero

Two

Four

Six

Group VI B to transition elements contains

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Zn, Cd, Hg

Fe, Ru, OS

Cr, MO, W

Mn, Te, Re

The substance which is added to remove impurities is known as

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Slag

Flux

Ore

Gangue

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 one of the following elements shows variable valency, can act as a catalyst and form coloured compounds.

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Carbon

Chlorine

Sulpur

Iron

f-block elements are also called

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non typical transition elements

outer transition elements

normal transition elements

inner transition elements

Which of the following is non-typical transition element

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Cr

Mn

Zn

Fel

The total number of translation elements is

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10

14

40

65

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)

Which is not coloured ion

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SO4^-2

MnO4-3

CrO4^-2

Cr2O7^-2

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