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

Which is used to identify Cu2+ions

Question # 2

Which one of the following metal ions is colourless?

Question # 3

Across the lanthanide series, the basicity of the lanthanide hydroxides

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

Oxalic acid oxidizes to:

Question # 8

Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the

Question # 9

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

Question # 10

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

Question # 11

Which metal is used for catalytic hydrogenation of oils

Question # 12

In physical and chemical properties, transition elements show

Question # 13

Which of the following is not correct about transition metals?

Question # 14

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

Question # 15

CuSO4. 5H2O is used to prepare

Question # 16

Which alloy contains 50% copper, 25% zinc and 25% nickel

Question # 17

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

Question # 18

E.D.T.A is

Question # 19

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

Question # 20

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

Question # 21

The total number of d-bock transition element is

Question # 22

Solubility of KMnO4 at higher temperature is:

Question # 23

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

Question # 24

AgCl is soluble is

Question # 25

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 # 26

Most transition elements show

Question # 27

Which of the following is a typical transition metal?

Question # 28

Which of the following is a typical transition metal

Question # 29

The compound which gives oxygen on moderate heating is

Question # 30

Which element does not belong to 3d transition series

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Sr.# Question Answer
1 What is wrong about transition metals?
A. Diamagnetic
B. Paramagnetic
C. Form complexes
D. Shows variable oxidation state
2 Property of transition element is :
A. Low m.p and b.p
B. Parramagnetism
C. Oxidation state
D. Low binding energies
3 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
4 The amount of Ni in stainless steel is
A. 3%
B. 4%
C. 5%
D. 8%
5 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
6 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
7 Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the
A. Reduction of Cu2+
B. Oxidation of Cu2+
C. Reduction of Fe
D. Reduction of Fe3+
8 Which of the following is obtained when Fe reacts with dil. HNO3?
A. N2O
B. NO
C. NO2
D. None of these
9 Misch mental is
A. An alloy of Aluminium
B. A mixture of chromium and lead chromate
C. An alloy of lanthanoid metals
D. An alloy of copper
10 All 3d series elements show variable oxidation states. The one shown by all 3d elements is
A. +2
B. +3
C. +4
D. +5
11 Turnbull's blue is a compound called?
A. Ferricyanide
B. Ferrous ferricyanide
C. Ferrous cyanide
D. Ferri - Ferro cyanide
12 Out of 110 known elements, transition elements are
A. 40
B. 60
C. 50
D. 80
13 Which is the correct electronic configuration of Cr - 24
A. 1s2, 2s2, 2p6, 3s2, 3p6, 3d4, 4s2
B. 1s2, 2s2, 2p6, 3s2, 3p6, 3d3, 4s2, 4p1
C. 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4s1
D. 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4p1
14 Series starting from57La,42Hf -80Hg is in the period:
A. 4th
B. 5th
C. 6th
D. 7th
15 The number of unpaired electrons in Fe3+(Z = 26) are
A. 5
B. 6
C. 3
D. 4
16 In the extraction of iron, slag is produced which is
A. CO
B. FeSiO3
C. MgSiO3
D. CaSiO3
17 Cu2+with d9electronic configuration appears
A. Yellow
B. Pink
C. Blue
D. Green
18 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
19 The geometrical shape of a transition complexion is related to the state of hybridizing of the central atom. What is trigonal bipyramidal
A. sp3
B. dsp2
C. dsp3
D. d2sp3
20 Which element has 4 unpaired electrons in 3d-orbital
A. Chromium - 24
B. Manganese - 25
C. Iron - 26
D. Cobalt - 27
21 AgCl is soluble is
A. Aqua regia
B. H2SO4
C. HCl
D. NH3
22 The number of unpaired electrons in Mn2+is
A. 5
B. 4
C. 3
D. 2
23 Which of the following compounds gives red precipitate with AgNO3?
A. Kl
B. K2CrO4
C. NaBr
D. NaNO3
24 The total number of transition elements is
A. 10
B. 14
C. 40
D. 50
25 Which of the following is not an element?
A. Graphite
B. Diamond
C. 22-Carat gold
D. Rhombic sulphur
26 Coordination sphere may be:
A. Cationic
B. Anionic
C. Neutral
D. All above
27 Coordination number of Pt in [Pt Cl(NO2) (NH3)]2-is
A. 2-
B. 4
C. 1
D. 6
28 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
29 6-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
30 A phtotographic plate is coated with an emulsion of silver nitrate and
A. AgCI
B. AgI
C. AgBr
D. NaNO3

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