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

Cuprous ore among the following is

Question # 2

The iron obtained from blast furnace is

Question # 3

Rusting can be avoided by :

Question # 4

Which of the following elements does not show variable oxidation states?

Question # 5

Electronic configuration of Cu+2is

Question # 6

The oxidation number of Ni in [Ni(CO)4] is

Question # 7

Which metal is used for catalytic hydrogenation of oils

Question # 8

Bessemer converter is used in the manufacture of

Question # 9

Which is not a bidentate ligand

Question # 10

The number of unpaired electrons in Fe3+(Z = 26) are

Question # 11

Interstitial compounds have

Question # 12

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 13

Potassium ferrocyanide is a

Question # 14

The protection of steel by chrome plating is due to

Question # 15

Rusting of iron is catalysed by

Question # 16

Non-formation of menisus by Hg in presence of O3is due to the formation of

Question # 17

Potassium chromate has formula

Question # 18

The lanthanides contraction is responsible for the fact that

Question # 19

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

Question # 20

Which element has 4 unpaired electrons in 3d-orbital

Question # 21

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

Question # 22

The color of Cr3+ion is

Question # 23

Which of the following is a transition element

Question # 24

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

Question # 25

Which alloy contains 50% copper, 25% zinc and 25% nickel

Question # 26

The compound which gives oxygen on moderate heating is

Question # 27

Potassium hexacyanoferrate (II) has the formula

Question # 28

Out of 110 known elements, transition elements are

Question # 29

Besides Zn and Cu , German silver contains the metal

Question # 30

German silver does not contain

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following is not an element?
A. Graphite
B. Diamond
C. 22-Carat gold
D. Rhombic sulphur
2 The colour of transition metal complexes is due to
A. d-d transitions of electrons
B. Para magnetic nature of transition elements
C. Ionization
D. Loss of s-electrons
3 Which is the correct electronic configuration of Cr - 24
A. 1s2, 2s2, 2p6, 3s2, 3p6, 3d4, 4s2
B. 1s2, 2s2, 2p6, 3s2, 3p6, 3d3, 4s2, 4p1
C. 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4s1
D. 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4p1
4 Which of the following has the maximum number of unpaired d-electrons?
A. Zn
B. Fe2+
C. Ni3+
D. Cu+
5 Coordination sphere may be:
A. Cationic
B. Anionic
C. Neutral
D. All above
6 Stainless steel contains ion and carbon along with
A. Ni and Cr
B. Cr and Co
C. Co and Mn
D. Mn and Ni
7 The total number of transition elements is:
A. 10
B. 14
C. 40
D. 50
8 What are alloys
A. A homogenous mixture of two or more elements
B. A homohenous mixture of metal and a non-metal
C. A homogenous mixture of two or more metals
D. None of the above
9 Rusting of iron is catalysed by
A. Fe
B. O2
C. Zn
D. H+
10 Titanium is used as a catalyst in
A. Hydrogenation
B. Dehydrogenation
C. Polymerization of P.E.
D. Oxidation of ammonia

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