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

Bell metal is an alloy of Sn and

Question # 2

Across the lanthanide series, the basicity of the lanthanide hydroxides

Question # 3

Which is the correct electronic configuration of Cr - 24

Question # 4

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

Question # 5

The formula of curprite is

Question # 6

In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because

Question # 7

Which of the following is a typical transition metal?

Question # 8

The lanthanides contraction is responsible for the fact that

Question # 9

Which element does not belong to 4d series

Question # 10

In the manufacture of iron from haematitie,limestone is added to act as

Question # 11

Which is non typical transition element :

Question # 12

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

Question # 13

What is wrong about transition metals?

Question # 14

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

Question # 15

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

Question # 16

The less reactivity of transition metal is due to

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

The total number of rare earth elements is

Question # 21

The equivalent weight of KMnO4(formula weight = M) when it is used as an oxidant in neutral medium is

Question # 22

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

Question # 23

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 # 24

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

Question # 25

The color of Cr3+ion is

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

In the extraction of iron, slag is produced which is

Question # 30

The iron obtained from blast furnace is

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Interstitial compounds have
A. Half formula
B. Fixed formula
C. Indefinite formula
D. None
2 Which of the following is a transition element
A. Sr
B. Sn
C. Cr
D. Pb
3 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
4 The compound which gives oxygen on moderate heating is
A. Zinc oxide
B. Mercuric oxide
C. Aluminium oxide
D. Ferric oxide
5 Which of the following elements does not show variable oxidation states?
A. Copper
B. Iron
C. Zinc
D. Titanium
6 What is the shape of Fe(CO)5molecule?
A. Tetrahedral
B. Octahedral
C. Trigonal bipyramidal
D. Square pyramidal
7 Turnbull's blue is a compound called?
A. Ferricyanide
B. Ferrous ferricyanide
C. Ferrous cyanide
D. Ferri - Ferro cyanide
8 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
9 Which of the following is obtained when Fe reacts with dil. HNO3?
A. N2O
B. NO
C. NO2
D. None of these
10 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

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