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

The oxidation state of Fe in [Fe(CN)6]3-is

Question # 2

The colour of transition metal complexes is due to:

Question # 3

The formula of curprite is

Question # 4

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

Question # 5

Bell metal is an alloy of

Question # 6

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

Question # 7

Potassium chromate has formula

Question # 8

What is the name of the comlex [Ni(CO)4]

Question # 9

The free spaces between the metal atoms and its crystal lattice are called

Question # 10

Rusting can be avoided by :

Question # 11

Cu2+with d9electronic configuration appears

Question # 12

[Zn(NH3)4]3+possess geometry

Question # 13

Which of the following compounds gives red precipitate with AgNO3?

Question # 14

Which of the following is a not typical transition element

Question # 15

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

Question # 16

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

Question # 17

The protection of steel by chrome plating is due to

Question # 18

A phtotographic plate is coated with an emulsion of silver nitrate and

Question # 19

Which element has 4 unpaired electrons in 3d-orbital

Question # 20

[Co(NH3)6]3+will form ______ structure

Question # 21

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

Question # 22

German silver does not contain

Question # 23

CuSO4. 5H2O is used to prepare

Question # 24

[Cu[NH3)4]+2will form ______ structure

Question # 25

IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are

Question # 26

Which period starts from 11Sc to 30Zn ?

Question # 27

The total number of transition elements is:

Question # 28

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

Question # 29

Potassium hexacyanoferrate (II) has the formula

Question # 30

Sodium thisoulophate is used in photography because of its

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
2 Potassium chromate has formula
A. KClO3
B. K2CO3
C. K2CrO4
D. K2Cr2O7
3 The coordination number of iron in [Fe(H2O)6]3+is
A. 2
B. 3
C. 4
D. 6
4 Titanium is used as a catalyst in
A. Hydrogenation
B. Dehydrogenation
C. Polymerization of P.E.
D. Oxidation of ammonia
5 d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect
A. They show variable valency
B. Their ions and compounds are coloured
C. They are good conductors of heat and electricity
D. Their compounds are diamagnetic
6 Transition elements differ from s and p block elements due to their characteristic properties. What is not he characteristic property of transition elements
A. Transition elements show variable oxidation states
B. Their salts are coloured
C. They can be used as catalyst
D. All of them are metals
7 Coordination number of Pt in [PtCl (NO2) (NH3)4]2-
A. 2-
B. 4
C. 1
D. 6
8 AgCl is soluble is
A. Aqua regia
B. H2SO4
C. HCl
D. NH3
9 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
10 Which alloy contains 50% copper, 25% zinc and 25% nickel
A. German silver
B. Gun metal
C. Bell metal
D. Brass

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