ECAT Pre Engineering Chemistry Chapter 15 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements

Try The MCQ's Test For ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements

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ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements

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Question # 1

Out of all the elements of group V-A , the highest ionization energy is possessed by:

Question # 2

Out of all the elements of group VI-A the highest melting and boiling points is shown by the elements:

Question # 3

Sulphuric acid is used

Question # 4

Which of the following species has the maximum number of unpaired electrons?

Question # 5

Which can be prepared from HNO3?

Question # 6

Among group V-A elements, the most electronegative element is:

Question # 7

Structure of P4 is

Question # 8

Allotropic forms of sulpher are

Question # 9

The most stable phosphorus allotrope is

Question # 10

Which property is not present in non-methals

Question # 11

Bone ash contains calcium phosphate

Question # 12

Colour of PCl5is:

Question # 13

Nitrogen is present in atmosphere by weight

Question # 14

Which is the most reactive?

Question # 15

Which element of group IV-A does not use d — orbital?

Question # 16

Posphorus belongs to a group

Question # 17

Which element of group IV-A does not use d-orbital?

Question # 18

Nitrogen is present in atmosphere

Question # 19

Aqua Regia has ratio of conc. HCl and HNO3

Question # 20

What are non-metals?

Question # 21

Out of all the elements of group V1-A the highest melting and boiling points is shown by the element

Question # 22

Oxidation of NO in air produces

Question # 23

All elements of group VI-A non-metal except

Question # 24

Calcium carbonate contains oxygen in it

Question # 25

Formation of NO from N2 and O2 requires temp

Question # 26

Group VI-A elements are called:

Question # 27

Allotropic forms of phosphorus are

Question # 28

Which is nitrous acid?

Question # 29

Out of all the elements of group V-A, the highest ionization energy is possessed by

Question # 30

Which element belongs to group V-A?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Which is aqua regia?
A. HCL : NO
B. HCl : HNO3
C. HCl : H2SO4
D. H2SO4 : HNO3
2 Tungsten and uranium are turned to an reaction with HNO3
A. Oxides
B. Chlorides
C. Nitrides
D. Nitrates
3 Which has sweetish taste?
A. N2O
B. NH3
C. Cl2
D. CO2
4 Which element of group IV-A does not use d — orbital?
A. N
B. P
C. As
D. Sb
5 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
6 Which catalyst is used in contact process?
A. Fe2O3
B. V2O5
C. SO3
D. Ag2O
7 Which is an inert gas?
A. Nitrogen
B. Oxygen
C. Hydrogen
D. CO
8 Laughing gas is chemically
A. NO
B. N2O
C. NO2
D. N2O4
9 Posphorus belongs to a group
A. III-A
B. IV-A
C. V-A
D. VI-A
10 Calcium carbonates contains oxygen in it:
A. 48%
B. 50%
C. 53%
D. 60%

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