Question # 1

Which is non typical transition element :

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Ni

Co

Y

Fe

Oxalic acid oxidizes to:

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CO

CO₂

Oxalates

None of these

Choose the correct answer of transition elements?

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Transition elements have low melting points

Transition elements do not have catalytic activity

Transition elements exhibit variable oxidation states

Transition elements exhibit inert pair effect

Most transition elements show

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Diamagnetic behavior

Ferromagnetic behavior

Paramagnetic behavior

None of these

Which of the following is a typical transition metal

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Sc

Y

Ra

Co

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

The Mn³⁺has ______ color

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Violet

Green

Red/brown

No color

Rusting can be avoided by :

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Making alloys

Tin or Zinc plating

Use of enamel

All of these

Across the lanthanide series, the basicity of the lanthanide hydroxides

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Increases

Decreases

First increases and then decreases

First decreases and then increases

Most common oxidation states shownby cerium are

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+2, +4

+3, +4

+3, +5

+2, +3

Stainless steel contains ion and carbon along with

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Ni and Cr

Cr and Co

Co and Mn

Mn and Ni

Group VIB of transition elements contains

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Zn, Cd, Hg

Fe, Ru, Os

Cr, Mo, W

Mn, Te, Re

Bell metal is an alloy of Sn and

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Copper

Iron

Zinc

Magnesium

Elements in which f-orbitals are in the process of completion are called

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Outer transition element

Inner transition elements

Non-tranistion elements

Radioactive elements

Which is not a bidentate ligand

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The number of unpaired electrons in ferrous ion ( Z - 26) is

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3

2

4

5

Property of transition element is :

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Low m.p and b.p

Parramagnetism

Oxidation state

Low binding energies

The total number of transition elements is

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10

14

40

50

During oxidation in k₂Cr₂O_{7, Cr VI changes to :}

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I

II

III

IV

An oxidixing agent

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K₂Cr₂O₇

H₂SO₄

FeSO₄

K₂SO₄

In the extraction of iron, slag is produced which is

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CO

FeSiO₃

MgSiO₃

CaSiO₃

Which of the following is a typical transition metal?

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Sc

Y

Ra

Co

Among the lanthandes the one obtained by synthetic method is

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Lu

Pm

Pr

Gd

Which element belong to 5d series

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V

Nb

Pd

Hf

Out of 110 known elements, transition elements are

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40

60

50

80

Which of the following is used as disinfectant

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K₂Cr₂O₇

KMnO₄

K₂MnO₄

K₂CrO₄

Which period starts from ₁₁Sc to ₃₀Zn ?

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First Period

Second Period

Third Period

4th Period

Which one of the following has highest density

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Zn

Os

Ni

Cu

Which element does not belong to 4d series

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Y

Zr

Mo

Zn

Group VI-B of transition elements contains:

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Zn, Cd, Hg

Fe ,Ru ,Os

Cr, Mo ,W

Mn, Te, Re

4-d series is in the period:

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4th

5th

6th

7th

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