ECAT Pre Engineering Chemistry Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 17 Transition Elements

Try The MCQ's Test For ECAT Chemistry Chapter 17 Transition Elements

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ECAT Chemistry Chapter 17 Transition Elements

00:00
Question # 1

Transition elements form which type of bond

Question # 2

Out of 110 known elements, transition elements are

Question # 3

The colour of transition metal complexes is due to:

Question # 4

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

Question # 5

The protection of steel by chrome plating is due to

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

Choose the correct answer of transition elements?

Question # 10

5-d series is in the period :

Question # 11

Among the lanthandes the one obtained by synthetic method is

Question # 12

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

Question # 13

Potassium chromate has formula

Question # 14

Which of the following is a carbonate are?

Question # 15

Bronze is an alloy of Cu and

Question # 16

Transition elements are called so because:

Question # 17

Which of the following transition metal ions will have definite value of magnetic moment?

Question # 18

In the extraction of iron, slag is produced which is

Question # 19

f-block elements are called :

Question # 20

Most transition elements show

Question # 21

Mercury is the only metal which is liquid at 0°C. this is due to its

Question # 22

The number of unpaired electrons in Mn2+is

Question # 23

Which element belong to 5d series

Question # 24

Cu2+with d9electronic configuration appears

Question # 25

High purity copper metal is obtained by

Question # 26

The Mn3+has ______ color

Question # 27

Series starting from57La,42Hf -80Hg is in the period:

Question # 28

The colour of transition metal complexes is due to

Question # 29

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

Question # 30

Which has the largest radius?

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Group VIB of transition elements contains
A. Zn, Cd, Hg
B. Fe, Ru, Os
C. Cr, Mo, W
D. Mn, Te, Re
2 The color of Cr3+ion is
A. Violet
B. Blue
C. Pink
D. Green
3 Which element has 4 unpaired electrons in 3d-orbital
A. Chromium - 24
B. Manganese - 25
C. Iron - 26
D. Cobalt - 27
4 Maximum variable oxidation state is of:
A. Mn+2
B. Fe+3
C. Cr+1
D. a and b
5 Which is in differnet phase form other metals
A. Ni
B. Hg
C. Cd
D. Na
6 Potassium hexacyanoferrate (II) has the formula
A. K4[Fe(CN)6]
B. K3[Fe(CN)6]
C. K2[Fe(CN)6]
D. K [Fe(CN)6]
7 6-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
8 Oxalic acid oxidizes to:
A. CO
B. CO2
C. Oxalates
D. None of these
9 The lanthanides contraction is responsible for the fact that
A. Zr and Y have about the same radius
B. Zr and Nb have similar oxidsation state
C. Zr and Hf have about the same radius
D. Zr and Zn have the same oxidation satete
10 Across the lanthanide series, the basicity of the lanthanide hydroxides
A. Increases
B. Decreases
C. First increases and then decreases
D. First decreases and then increases

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