Question # 1

Cuprous ore among the following is

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Chalcopyites

Azurite

Cuprite

Malachitre

Which element belong to 5d series

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V

Nb

Pd

Hf

Coordination number of Pt in [Pt Cl(NO₂) (NH₃)]^2-is

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2-

4

1

6

Group VIB of transition elements contains

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Zn, Cd, Hg

Fe, Ru, Os

Cr, Mo, W

Mn, Te, Re

Rusting can be avoided by :

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Making alloys

Tin or Zinc plating

Use of enamel

All of these

The geometry of [Co(NH₃)₆]³⁺is

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Tetrahedral

Square planar

Octahedral

None of these

Which element does not belong to 4d series

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Y

Zr

Mo

Zn

Which is used to identify Cu²⁺ions

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Nitric acid

Sulfuric acid

NaOH

HCI

Electronic configuration of Cu⁺²is

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4S², 3d⁹

4s^-1, 3d¹⁰

4S⁰, 3d⁹

None of these

Bell metal is an alloy of Sn and

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Copper

Iron

Zinc

Magnesium

The compound which gives oxygen on moderate heating is

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Zinc oxide

Mercuric oxide

Aluminium oxide

Ferric oxide

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ECAT Chemistry Chapter 17 Transition Elements Online Test MCQs With Answers

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