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

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

Question # 2

The number of unpaired electrons in Mn2+is

Question # 3

The colour of the transition metal compounds is due to

Question # 4

Coordination number of Pt in [PtCI(NO2) (NH3)4]2+is

Question # 5

Bell metal is an alloy of

Question # 6

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

Question # 7

Most common oxidation states shownby cerium are

Question # 8

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

Question # 9

Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is

Question # 10

Which of the following is not an element?

Question # 11

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

Question # 12

Stainless steel contains Cr upto

Question # 13

The Mn3+has ______ color

Question # 14

Which of the following metals is sometimes found in native state in nature?

Question # 15

Coordination number of Pt in [PtCl (NO2) (NH3)4]2-

Question # 16

What is wrong about transition metals?

Question # 17

The colour of transition metal complexes is due to:

Question # 18

German silver does not contain

Question # 19

Potassium chromate has formula

Question # 20

Oxalic acid oxidizes to:

Question # 21

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

Question # 22

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

Question # 23

Which of the following is not correct about transition metals?

Question # 24

Coordination sphere may be:

Question # 25

The percentage of carbon in different types of iron products is in the order of

Question # 26

The formula of curprite is

Question # 27

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

Question # 28

Bronze is an alloy which contains

Question # 29

Property of transition element is :

Question # 30

Which of the following is a typical transition metal?

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
2 3-d series elements are present in:
A. First period
B. Second Period
C. Third period
D. 4th period
3 During oxidation in k2Cr2O7, Cr VI changes to :
A. I
B. II
C. III
D. IV
4 The colour of a transition metal complex is due to d-d transition The colour of the complex is the complementary of the colour absorbed. Thus [Ti(H2O6]3+abosrbs yellow light and transmits blue and red colours therefore the solution of titanium complex appears
A. Blue
B. Red
C. Yellow
D. Mixture of blue and red or violet
5 The color of Cr3+ion is
A. Violet
B. Blue
C. Pink
D. Green
6 Which of the following is obtained when Fe reacts with dil. HNO3?
A. N2O
B. NO
C. NO2
D. None of these
7 f-Block elements are also called
A. Non typical transition elements
B. Outer transition elements
C. Normal transition elements
D. Inner transition elements
8 What is the shape of Fe(CO)5molecule?
A. Tetrahedral
B. Octahedral
C. Trigonal bipyramidal
D. Square pyramidal
9 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
A. Pt(NH3)6CI4
B. Pt(NH3)5CI4
C. Pt(NH3)4CI4
D. Pt(NH3)3CI4
10 Transition metals mostly are
A. Diamagnetic
B. Paramagnetic
C. Neither diamagnetic nor paramagnetic
D. Both diamagnetic and paramagnetic

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