Question # 1

In [Co(NH3)6]+3 the coordination number of cobalt is.

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Zero

Two

Four

Six

To prevent corrosion, Iron pipes carrying drinking water are covered with zinc by

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alley formation

Electroplating

Galvanizing

Soldering

Typical transition element is

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Sc

CO

Ra

Y

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

Which furnace is used to prepared steel

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Blast furnace

Pudding furnace

Bessemer converter

Pyrite furnace

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

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2-

4

1

6

The chemical composition of pyrolusite is.

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KMnO4

K2MnO4

MnO2

MnO

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

Which of the following is a non typical transition element.

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Cr

Mn

Zn

Fe

The substance which is added to remove impurities is known as

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Slag

Flux

Ore

Gangue

Element of which group are called non typical transition elements.

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IB

II B

II A

VII B

The strength of binding energy of transition elements depend upon

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number of electron pairs

number of unpaired electron pairs

number of neutrons

number of protons

Total number of d-block elements are

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10

20

30

40

f - block elements are also called.

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Non typical transition elements

Outer transition elements

Inner transition elements

None of true

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 a typical transition metal.

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Sc

Y

Ra

CO

Which of the following is a typical transition metal

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Sc

Y

Ra

Co

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