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

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

Question # 2

Content of carbon in steel is:

Question # 3

Which of the following is used as disinfectant

Question # 4

Transition elements form which type of bond

Question # 5

Most common oxidation states shownby cerium are

Question # 6

Transition metals form complexes due to the participation of partially filled

Question # 7

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

Question # 8

Which has the largest radius?

Question # 9

Which of the following d-block elements can show the highest oxidation number in its compounds

Question # 10

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

Question # 11

Which is non typical transition element :

Question # 12

The protection of steel by chrome plating is due to

Question # 13

Which element belong to 5d series

Question # 14

Among the lanthandes the one obtained by synthetic method is

Question # 15

Which of the following is a typical transition metal

Question # 16

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 # 17

Which one of the following has highest density

Question # 18

Elements in which f-orbitals are in the process of completion are called

Question # 19

Which of the following is not an element?

Question # 20

The elements in which d or f-orbitals are incomplete are called

Question # 21

The geometrical shape of a transition complexion is related to the state of hybridizing of the central atom. What is trigonal bipyramidal

Question # 22

Bessemer converter is used in the manufacture of

Question # 23

The colour of the transition metal compounds is due to

Question # 24

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

Question # 25

Bronze is an alloy of Cu and

Question # 26

Rusting can be avoided by :

Question # 27

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

Question # 28

Choose the correct answer of transition elements?

Question # 29

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

Question # 30

Which element does not belong to 4d series

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Sr.# Question Answer
1 [Co(NH3)6]3+will form ______ structure
A. Square planar
B. Tetrahedral
C. Octahedral
D. Trigonal bipyamidal
2 Which of the following is not correct about transition metals?
A. Their melting and boiling points are high
B. Their compounds are generally coloured
C. They can form ionic or covalent compounds
D. They do not exhibit variable valency
3 The protection of steel by chrome plating is due to
A. Cathodic protection
B. Anodic protection
C. Covering of steel surface
D. Formation of alloy with iron
4 The colour of transition metal complexes is due to:
A. d-d transitions of electorns
B. Paramagnetic nature of transition
C. Ionization
D. Loss of s-electrons
5 Choose the correct answer of transition elements?
A. Transition elements have low melting points
B. Transition elements do not have catalytic activity
C. Transition elements exhibit variable oxidation states
D. Transition elements exhibit inert pair effect
6 Bronze is an alloy which contains
A. 60% cu
B. 70% cu
C. 80% cu
D. 99% cu
7 Which of the following is non-typical transition element?
A. Cr
B. Mn
C. Zn
D. Fe
8 Interstitial compounds have
A. Half formula
B. Fixed formula
C. Indefinite formula
D. None
9 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
10 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]
11 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
12 Coordination number of Pt in [PtCI(NO2) (NH3)4]2+is
A. 2-
B. 4
C. 1
D. 6
13 Which element belong to 5d series
A. V
B. Nb
C. Pd
D. Hf
14 Which one of the following metal ions is colourless?
A. V2+
B. Cr3+
C. Zn2+
D. Ti3+
15 4-d series is in the period:
A. 4th
B. 5th
C. 6th
D. 7th
16 3-d series elements are present in:
A. First period
B. Second Period
C. Third period
D. 4th period
17 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
18 Group VI-B of transition elements contains:
A. Zn, Cd, Hg
B. Fe ,Ru ,Os
C. Cr, Mo ,W
D. Mn, Te, Re
19 Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is
A. 4
B. 5
C. 6
D. 7
20 Across the lanthanide series, the basicity of the lanthanide hydroxides
A. Increases
B. Decreases
C. First increases and then decreases
D. First decreases and then increases
21 Which element does not belong to 3d transition series
A. Ti
B. V
C. Mn
D. Te
22 Electronic configuration of Cu+2is
A. 4S2, 3d9
B. 4s-1, 3d10
C. 4S0, 3d9
D. None of these
23 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
24 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
25 d-block elements are also called :
A. alkali metal
B. Alkaline earth metals
C. Transition elements
D. Electron deficient elements
26 Which of the following has the maximum number of unpaired d-electrons?
A. Zn
B. Fe2+
C. Ni3+
D. Cu+
27 Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?
A. [Pt(NH3)4(NO2)]SO4
B. [PtNO2Cl(NH3)4]SO4
C. [PtCl(NO2)(NH3)4]SO4
D. [Pt(NH3)4(NO2)Cl]SO4
28 Non-formation of menisus by Hg in presence of O3is due to the formation of
A. Mercuric oxide
B. Mercurous oxide
C. Mercuric chloride
D. Mercurous chloride
29 Group VIB of transition elements contains
A. Zn, Cd, Hg
B. Fe, Ru, Os
C. Cr, Mo, W
D. Mn, Te, Re
30 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

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