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

00:00
Question # 1

Allotropic forms of phosphorus are

Question # 2

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

Question # 3

Calcium carbonates contains oxygen in it:

Question # 4

Which is nitrous acid?

Question # 5

Which element belongs to group V-A?

Question # 6

Aqua Regia has ratio of conc. HCl and HNO3

Question # 7

Which can be prepared from HNO3?

Question # 8

Allotropic forms of sulpher are

Question # 9

Bone ash contains calcium phosphate

Question # 10

Which are metalloid?

Question # 11

Group VI-A elements are called:

Question # 12

Which catalyst is used in contact process?

Question # 13

Reaction of HNO, with very dilute Zinc and at low temperature gives

Question # 14

Formation of NO from N2 and O2 requires temp

Question # 15

Which is an inert gas?

Question # 16

The most stable phosphorus allotrope is

Question # 17

What are non-metals?

Question # 18

Nitrogen is present in atmosphere by weight

Question # 19

Allotropic forms of oxygen Te, Se are

Question # 20

Which has sweetish taste?

Question # 21

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

Question # 22

Colour of N2O4 is

Question # 23

Nitrogen is present in atmosphere by weight:

Question # 24

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 25

Structure of P4 is

Question # 26

The brown gas formed when metal reduces HNO3is

Question # 27

Nitrogen is present in atmosphere

Question # 28

Nitrogen is present in atmosphere

Question # 29

Which property is not present in non-metals:

Question # 30

Which is laughing gas?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Laughing gas is chemically
A. NO
B. N2O
C. NO2
D. N2O4
2 Which can be prepared from HNO3?
A. T.N.T
B. Fertilizers
C. Picric acid
D. All of these
3 Out of all the elements of group V-A , the highest ionization energy is possessed by:
A. N
B. P
C. Sb
D. Bi
4 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five
5 Bone ash contains calcium phosphate
A. 70%
B. 80%
C. 90%
D. 100%
6 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
7 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All
8 Tungsten and Uranium are turned to an reaction with HNO3:
A. Oxides
B. chlorides
C. Nitrides
D. Nitrates
9 Which is the most reactive?
A. White phosphorus
B. Red Phosphorus
C. Graphite
D. Plastic sulphur
10 Oxidation of NO in air produces
A. N2O
B. N2O3
C. N2O4
D. N2O5

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