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

Question # 2

Most common oxidation states shownby cerium are

Question # 3

Which has the largest radius?

Question # 4

The less reactivity of transition metal is due to

Question # 5

Bronze is an alloy which contains

Question # 6

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

Question # 7

Which one of the following metal ions is colourless?

Question # 8

Potassium ferrocyanide is a

Question # 9

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

Question # 10

Which of the following is not an element?

Question # 11

Transition elements are called so because:

Question # 12

Which of the following compounds gives red precipitate with AgNO3?

Question # 13

Which of the following is a typical transition metal?

Question # 14

The total number of transition elements is

Question # 15

d-block elements are also called :

Question # 16

A transition element is defined as an element of 3d series

Question # 17

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

Question # 18

Which of the following is not correct about transition metals?

Question # 19

The formula of curprite is

Question # 20

AgCl is soluble is

Question # 21

Turnbull's blue is a compound called?

Question # 22

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

Question # 23

Which element does not belong to 3d transition series

Question # 24

Transition metals mostly are

Question # 25

What is wrong about transition metals?

Question # 26

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

Question # 27

Steel may be manufacture by two processes which two are correct

Question # 28

Property of transition element is :

Question # 29

Which of the following is not related to transition metals

Question # 30

Which is the correct electronic configuration of Cr - 24

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Sr.# Question Answer
1 Which of the following is obtained when Fe reacts with dil. HNO3?
A. N2O
B. NO
C. NO2
D. None of these
2 All 3d series elements show variable oxidation states. The one shown by all 3d elements is
A. +2
B. +3
C. +4
D. +5
3 Which element belong to 5d series
A. V
B. Nb
C. Pd
D. Hf
4 Sodium thisoulophate is used in photography because of its
A. Oxidizing behaviour
B. Reducing behaviour
C. Complexing behaviour
D. Photochemical behaviour
5 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
6 Maximum variable oxidation state is of:
A. Mn+2
B. Fe+3
C. Cr+1
D. a and b
7 Interstitial compounds have
A. Half formula
B. Fixed formula
C. Indefinite formula
D. None
8 The less reactivity of transition metal is due to
A. High heats of sublimation
B. High ionization energies
C. Low heats of salvation
D. All these
9 [Co(NH3)6]3+will form ______ structure
A. Square planar
B. Tetrahedral
C. Octahedral
D. Trigonal bipyamidal
10 f-Block elements are also called
A. Non typical transition elements
B. Outer transition elements
C. Normal transition elements
D. Inner transition elements
11 The number of unpaired electrons in ferrous ion ( Z - 26) is
A. 3
B. 2
C. 4
D. 5
12 The number of unpaired electrons in Fe3+(Z = 26) are
A. 5
B. 6
C. 3
D. 4
13 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]
14 Which of the following is a not typical transition element
A. Cr
B. Mn
C. Zn
D. Fe
15 Mercury is the only metal which is liquid at 0°C. this is due to its
A. Very high ionization energy and weak metallic bond
B. Low ionization potential
C. High atomic weight
D. High vapour pressure
16 Which is the formula of tetra-ammine chloro-nitro platinum (IV) sulphate
A. [Pt(NH3)4(NO2)] SO4
B. [Pt NO2CI(NH3)4] SO4
C. [Pt CI(NO2) (NH3)4] SO4
D. [Pt (NH3)4(NO2) CI] SO4
17 Potassium chromate has formula
A. KClO3
B. K2CO3
C. K2CrO4
D. K2Cr2O7
18 Series starting from57La,42Hf -80Hg is in the period:
A. 4th
B. 5th
C. 6th
D. 7th
19 Which element has 4 unpaired electrons in 3d-orbital
A. Chromium - 24
B. Manganese - 25
C. Iron - 26
D. Cobalt - 27
20 Which of the following acts as ligand
A. NH3
B. NH2-- CH2-- CH2-- NH2
C. C2O2-4
D. All these
21 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
22 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
23 Stainless steel contains ion and carbon along with
A. Ni and Cr
B. Cr and Co
C. Co and Mn
D. Mn and Ni
24 [Cu[NH3)4]+2will form ______ structure
A. Square planar
B. Tetrahedral
C. Octahedral
D. Trigonal bipyramidal
25 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
26 Titanium is used as a catalyst in
A. Hydrogenation
B. Dehydrogenation
C. Polymerization of P.E.
D. Oxidation of ammonia
27 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
28 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
29 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
30 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

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