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

00:00
Question # 1

Which of the following is obtained when Fe reacts with dil. HNO3?

Question # 2

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

Question # 3

Which of the following is a non-typical transition elements

Question # 4

The iron obtained from blast furnace is

Question # 5

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

Question # 6

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

Question # 7

Among the lanthandes the one obtained by synthetic method is

Question # 8

Which is non typical transition element :

Question # 9

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 10

Bessemer converter is used in the manufacture of

Question # 11

Most common oxidation states shownby cerium are

Question # 12

Transition metals form complexes due to the participation of partially filled

Question # 13

Steel may be manufacture by two processes which two are correct

Question # 14

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

Question # 15

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

Question # 16

d-block elements are also called :

Question # 17

[Cu[NH3)4]+2will form ______ structure

Question # 18

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

Question # 19

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

Question # 20

Which of the following is not an element?

Question # 21

Which of the following transition metal ions will have definite value of magnetic moment?

Question # 22

d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect

Question # 23

6-d series is in the period :

Question # 24

Which one of the following metal ions is colourless?

Question # 25

Which of the following element is responsible for oxidation of water to O2in biological process?

Question # 26

The colour of transition metal complexes is due to

Question # 27

Rusting can be avoided by :

Question # 28

Most transition elements show

Question # 29

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

Question # 30

Which of the following is used as disinfectant

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Transition metals mostly are
A. Diamagnetic
B. Paramagnetic
C. Neither diamagnetic nor paramagnetic
D. Both diamagnetic and paramagnetic
2 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
3 In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because
A. The 3rd orbital is of lower energy than 4s
B. The 4s orbital is of equal energy to 3d orbital
C. The half filled d-subshell is more stable than incomplete d-sub shell
D. 6 unpaired electrons make Cr more paramagnetic
4 4-d series is in the period:
A. 4th
B. 5th
C. 6th
D. 7th
5 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
6 Coordination number of Pt in [Pt Cl(NO2) (NH3)]2-is
A. 2-
B. 4
C. 1
D. 6
7 Which of the following is a not typical transition element
A. Cr
B. Mn
C. Zn
D. Fe
8 How many mole of acidfied FeSO4solution can be completely oxidized by one mole of KMNO4?
A. 10
B. 5
C. 6
D. 2
9 What are alloys
A. A homogenous mixture of two or more elements
B. A homohenous mixture of metal and a non-metal
C. A homogenous mixture of two or more metals
D. None of the above
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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