ECAT Pre Engineering Chemistry Chapter 17 MCQ Test With Answer

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

Which of the following is a typical transition metal?

Question # 2

Which is the formula of tetra-ammine chloro-nitro platinum (IV) sulphate

Question # 3

Which one of the following metal ions is colourless?

Question # 4

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

Question # 5

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

Question # 6

The Mn3+has ______ color

Question # 7

Most transition elements show

Question # 8

Which is used to identify Cu2+ions

Question # 9

The colour of transition metal complexes is due to:

Question # 10

Choose the correct answer of transition elements?

Question # 11

Transition elements form which type of bond

Question # 12

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

Question # 13

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

Question # 14

Bell metal is an alloy of

Question # 15

Cu2+with d9electronic configuration appears

Question # 16

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

Question # 17

Which of the following is a carbonate are?

Question # 18

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

Question # 19

3-d series elements are present in:

Question # 20

The total number of transition elements is:

Question # 21

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

Question # 22

Which is non typical transition element :

Question # 23

Which of the following is not an element?

Question # 24

Coordination sphere may be:

Question # 25

Oxalic acid oxidizes to:

Question # 26

In physical and chemical properties, transition elements show

Question # 27

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

Question # 28

German silver does not contain

Question # 29

Corrosion may be prevented by

Question # 30

The colour of the transition metal compounds is due to

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Sr. # Question Answer
1 Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because

A. It less reactive than copper

B. A layer of sulphates is deposited on it

C.An inert layer of iron oxide is deposited on it

D. All valence electrons of iron are consumed

2 The compound which gives oxygen on moderate heating is

A. Zinc oxide

B. Mercuric oxide

C.Aluminium oxide

D. Ferric oxide

3 In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is

A. 3

B. 2

C.5

D. Zero

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

A. 4th

B. 5th

C.6th

D. 7th

5 What is wrong about transition metals?

A. Diamagnetic

B. Paramagnetic

C.Form complexes

D. Shows variable oxidation state

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

A. 2-

B. 4

C.1

D. 6

7 An oxidixing agent

A. K2Cr2O7

B. H2SO4

C.FeSO4

D. K2SO4

8 Sodium thisoulophate is used in photography because of its

A. Oxidizing behaviour

B. Reducing behaviour

C.Complexing behaviour

D. Photochemical behaviour

9 Besides Zn and Cu , German silver contains the metal

A. Sn

B. Ag

C.Ni

D. Mg

10 Which of the following is not related to transition metals

A. They have a high tensile strength

B. They are ductile

C.They are malleable

D. They have low melting points

11 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]

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

A. 2-

B. 4

C.1

D. 6

13 Coordination sphere may be:

A. Cationic

B. Anionic

C.Neutral

D. All above

14 Among the lanthandes the one obtained by synthetic method is

A. Lu

B. Pm

C.Pr

D. Gd

15 The total number of transition elements is

A. 10

B. 14

C.40

D. 50

16 Bell metal is an alloy of

A. Cu, Zn, and Sn

B. Cu, Zn and Ni

C.Cu and Zn

D. Cu and Sn

17 Corrosion of iron can be prevented by coating the surface with

A. Zn

B. Sn

C.Ni

D. Any of the above

18 Oxalic acid oxidizes to:

A. CO

B. CO2

C.Oxalates

D. None of these

19 Which of the following metal exhibits more than one oxidation?

A. Na

B. Mg

C.Fe

D. Al

20 [Ti(H2O)6]+3ion absorbs colour:

A. Blue

B. Yellow

C.Green

D. Red

21 Electronic configuration of Cu+2is

A. 4S2, 3d9

B. 4s-1, 3d10

C.4S0, 3d9

D. None of these

22 CuSO4. 5H2O is used to prepare

A. Transition complex

B. Fehling's 'A' sol

C.Fehling's 'B' sol

D. Fehling's sol

23 Group VIB of transition elements contains

A. Zn, Cd, Hg

B. Fe, Ru, Os

C.Cr, Mo, W

D. Mn, Te, Re

24 f-Block elements are also called

A. Non typical transition elements

B. Outer transition elements

C.Normal transition elements

D. Inner transition elements

25 The formula of curprite is

A. Cu2S

B. Cus

C.Cu2O

D. CuCO3

26 Potassium ferrocyanide is a

A. Mixed salt

B. Double salt

C.Complex salt

D. Normal salt

27 The colour of the transition metal compounds is due to

A. p-d transition

B. d-d transition

C.s-p transition

D. None of these

28 Transition elements form which type of bond

A. Ionic bonds only

B. Covalent bonds only

C.Ionic and covalent bonds

D. Polar bonds

29 Which element belong to 5d series

A. V

B. Nb

C.Pd

D. Hf

30 The total number of rare earth elements is

A. 8

B. 32

C.14

D. 10

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