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

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Question # 1

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

Question # 2

A transition element is defined as an element of 3d series

Question # 3

Cu2+with d9electronic configuration appears

Question # 4

Rusting can be avoided by :

Question # 5

The color of Cr3+ion is

Question # 6

Interstitial compounds have

Question # 7

Property of transition element is :

Question # 8

Corrosion may be prevented by

Question # 9

What are alloys

Question # 10

Group VIB of transition elements contains

Question # 11

Bell metal is an alloy of

Question # 12

Turnbull's blue is a compound called?

Question # 13

In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because

Question # 14

Rusting of iron is catalysed by

Question # 15

Which element does not belong to 4d series

Question # 16

An element in +3 oxidation state has the electronic configuration (Ar) 3d3. Its atomic number is

Question # 17

The geometry of [Co(NH3)6]3+is

Question # 18

Series starting form 39Y to 48CD is in period:

Question # 19

Transition elements differ from s and p block elements due to their characteristic properties. What is not he characteristic property of transition elements

Question # 20

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

Question # 21

Which of the following has the maximum number of unpaired d-electrons?

Question # 22

Oxalic acid oxidizes to:

Question # 23

The total number of rare earth elements is

Question # 24

Which of the following is obtained when Fe reacts with dil. HNO3?

Question # 25

The colour of transition metal complexes is due to

Question # 26

Across the lanthanide series, the basicity of the lanthanide hydroxides

Question # 27

Corrosion of iron can be prevented by coating the surface with

Question # 28

The lanthanides contraction is responsible for the fact that

Question # 29

Which of the following is a non-typical transition elements

Question # 30

In the extraction of iron, slag is produced which is

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Coordination sphere may be:
A. Cationic
B. Anionic
C. Neutral
D. All above
2 Corrosion of iron can be prevented by coating the surface with
A. Zn
B. Sn
C. Ni
D. Any of the above
3 During oxidation in k2Cr2O7, Cr VI changes to :
A. I
B. II
C. III
D. IV
4 Bessemer converter is used in the manufacture of
A. Pig iron
B. Steel
C. Wrought iron
D. Cast iron
5 The equivalent weight of KMnO4(formula weight = M) when it is used as an oxidant in neutral medium is
A. M
B. M/2
C. M/3
D. M/5
6 The geometry of [Co(NH3)6]3+is
A. Tetrahedral
B. Square planar
C. Octahedral
D. None of these
7 [Ti(H2O)6]+3ion absorbs colour:
A. Blue
B. Yellow
C. Green
D. Red
8 IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are
A. Non typical transition element
B. Typical transition element
C. Normal elements
D. Inner transition element
9 Transition metals mostly are
A. Diamagnetic
B. Paramagnetic
C. Neither diamagnetic nor paramagnetic
D. Both diamagnetic and paramagnetic
10 The total number of d-bock transition element is
A. 10
B. 14
C. 40
D. 30

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