Question # 1

Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?

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[Pt(NH₃)₄(NO₂)]SO₄

[PtNO₂Cl(NH₃)₄]SO₄

[PtCl(NO₂)(NH₃)₄]SO₄

[Pt(NH₃)₄(NO₂)Cl]SO₄

Which of the following element is responsible for oxidation of water to O₂in biological process?

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Fe

Mn

Cu

Mo

5-d series is in the period :

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4th

5th

6th

7th

Misch mental is

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An alloy of Aluminium

A mixture of chromium and lead chromate

An alloy of lanthanoid metals

An alloy of copper

Among the lanthandes the one obtained by synthetic method is

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Lu

Pm

Pr

Gd

Which of the following is non-typical transition element?

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Cr

Mn

Zn

Fe

Oxalic acid oxidizes to:

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CO

CO₂

Oxalates

None of these

A transition metal complex can be recognized by various terms. Which is not the proper term

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Central metal ion

Coordination number

Ligand

Geometry of complex

How many mole of acidfied FeSO₄solution can be completely oxidized by one mole of KMNO₄?

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10

5

6

2

Which of the following is not correct about transition metals?

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Their melting and boiling points are high

Their compounds are generally coloured

They can form ionic or covalent compounds

They do not exhibit variable valency

The amount of Ni in stainless steel is

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3%

4%

5%

8%

4-d series is in the period:

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4th

5th

6th

7th

Cuprous ore among the following is

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Chalcopyites

Azurite

Cuprite

Malachitre

Platinum (IV) chloride combines with ammonia to form compounds in which the coordination number of the platinum is 6. A formula unit on one of the compound contains a cation and only two chloride ions. What is the formula of this compound

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Pt(NH₃)₆CI₄

Pt(NH₃)₅CI₄

Pt(NH₃)₄CI₄

Pt(NH₃)₃CI₄

Out of 110 known elements, transition elements are

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40

60

50

80

The number of unpaired electrons in Mn²⁺is

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5

4

3

2

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

[Co(NH₃)₆]³⁺will form ______ structure

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Square planar

Tetrahedral

Octahedral

Trigonal bipyamidal

Turnbull's blue is a compound called?

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Ferricyanide

Ferrous ferricyanide

Ferrous cyanide

Ferri - Ferro cyanide

The oxidation state of Fe in [Fe(CN)₆]^3-is

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+2

+3

+4

-3

Besides Zn and Cu , German silver contains the metal

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Sn

Ag

Ni

Mg

All 3d series elements show variable oxidation states. The one shown by all 3d elements is

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+2

+3

+4

+5

Which is used to identify Cu²⁺ions

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Nitric acid

Sulfuric acid

NaOH

HCI

What is the name of the comlex [Ni(CO)₄]

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Tetracarbonylnickel (o)

Tetracabonylnickel

Tetracabonylnickel (II)

Tetracabonylnickel (IV)

The coordination number of iron in [Fe(H₂O)₆]³⁺is

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2

3

4

6

Which of the following is a not typical transition element

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Cr

Mn

Zn

Fe

Which element does not belong to 3d transition series

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Ti

V

Mn

Te

The total number of d-bock transition element is

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10

14

40

30

d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect

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They show variable valency

Their ions and compounds are coloured

They are good conductors of heat and electricity

Their compounds are diamagnetic

Content of carbon in steel is:

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0.12 to 0.25%

0.25% to 2.5%

3.0 to 3.5%

4.0 to 4.5%

Transition metals mostly are

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Diamagnetic

Paramagnetic

Neither diamagnetic nor paramagnetic

Both diamagnetic and paramagnetic

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