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

Bone ash contains calcium phosphate

Question # 2

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

Question # 3

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

Question # 4

Group VI-A elements are called:

Question # 5

Sulphuric acid is used

Question # 6

The most stable phosphorus allotrope is

Question # 7

Tungsten and uranium are turned to an reaction with HNO3

Question # 8

Allotropic forms of sulpher are

Question # 9

Structure of P4 is

Question # 10

Which is aqua regia?

Question # 11

Specific gravity of HNO3 is

Question # 12

Which is laughing gas?

Question # 13

Which property is not present in non-methals

Question # 14

Aqua Regia has ration of conc. HCl and HNO3.

Question # 15

What are non-metals?

Question # 16

Aqua Regia has ratio of conc. HCl and HNO3

Question # 17

Nitrogen is present in atmosphere

Question # 18

Which can be prepared from HNO3?

Question # 19

Colour of PCl5is:

Question # 20

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

Question # 21

The brown gas formed when metal reduces HNO3is

Question # 22

Which gas is heavier than air?

Question # 23

Colour of N2O4 is

Question # 24

All elements of group VI-A non-metal except

Question # 25

Posphorus belongs to a group

Question # 26

Which phosphorus is the most poisonous?

Question # 27

Which has garlic like odour?

Question # 28

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

Question # 29

Which is the most reactive?

Question # 30

SO2is not absorbed in water directly to or H2SO4because:

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 The most stable phosphorus allotrope is
A. White
B. Red
C. Black
D. All
2 Which element belongs to group V-A?
A. Cs
B. Ba
C. Sr
D. Bi
3 Which is aqua regia?
A. HCL : NO
B. HCl : HNO3
C. HCl : H2SO4
D. H2SO4 : HNO3
4 Which can be prepared from HNO3?
A. T.N.T
B. Fertilizers
C. Picric acid
D. All of these
5 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
6 Colour of N2O4 is
A. Raddish brown
B. Yellow
C. Colouries
D. green
7 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
8 Aqua Regia has ration of conc. HCl and HNO3.
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
9 Nitrogen is present in atmosphere by weight:
A. 75%
B. 76%
C. 77%
D. 78%
10 Laughing gas is chemically
A. NO
B. N2O
C. NO2
D. N2O4

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