Question # 1

The oxidation state of transition elements is usually

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Variable

Single

Constant

Infinite

TiCl4 is used as catalyst for manufacture of

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Sulphuric acid

Plastics

Ethanol

Tetraethyl lead

d-d transition cannot be shows by

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Cu+1

Sc+3

Zn+2

All

When light is exposed to transtion element, then electrons jump from lower orbitals to higher orbitals in

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Orbitals of s-subshell

Orbitals of d-subshell

Orbitals of p-subshell

between different shells

which of the following is a typical transition metal?

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Sc

Y

Ra

Co

Zn has

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Zero unpaired electrons

Three unpaired electrons

Five unpaired electrons

One paired electrons

The highest oxidation state of manganese is

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+7

-7

+6

+4

The total number of 3d-series transition elements is

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10

40

14

58

All 3d series elements show an oxidation state of oxidation state

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+1

+2

+3

Zero

which of the following d blocks element can showthe highest oxidation number is its ompound

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Chromium

iron

Copper

Manganese

Which of the following is a non-typical transition element?

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Cr

Zn

Mn

Fe

Which of the following shows group IIIB

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Zn, Cd. Hg

Cu. Ag. Au

Sc. Y. La

Ni. Pd. Pt

Which pair of transition elements shows abnormal electronic configuration?

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Sc and Zn

Cu and Sc

Zn and Cu

Cu and Cr

Group of element belongs to IIB group

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Zn. Cd. Hg

Cu. Ag. Au

Sc. Y. La

Ni. Pd. Pt

Which of the followings has electronic configuration of Ar in +3 oxidation state

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Sc

Mn

Ti

Zn

A transition element X has a configuration [Ar) 4s3dd in its +3 oxidation state. Its atomic number is

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25

26

22

19

Which of the following pair has the same no. of electrons in d- subshell

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Sc+3,Ti+3

Mn+2,Fe+3

Ti+3,V+3

Cr+3.Co+2

Stability of Cu-metal is due to filled of d-orbital

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Half

Completely

Partially

Quarterly

Which of the folowing compound is expected to be colored

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Na2SO4

ZnCl2

MgF₂

CuF₂

Highest oxidation state af the transition elements is

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+8

+7

+5

+1

When light is exposed to a typical transition element, then electrons jumps from low orbitals to higher orbitals in

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f-orbitals

s-orbitals

p-orbitals

d-orbitals

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