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

Which gas is heavier than air?

Question # 3

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

Question # 4

Posphorus belongs to a group

Question # 5

Laughing gas is chemically

Question # 6

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

Question # 7

Calcium carbonates contains oxygen in it:

Question # 8

Colour of N2O4 is

Question # 9

Which is aqua regia?

Question # 10

Nitrogen is present in atmosphere by weight

Question # 11

Nitrogen is present in atmosphere

Question # 12

Which is nitrous acid?

Question # 13

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 14

The brown gas formed when metal reduces HNO3is

Question # 15

Nitrogen is present in atmosphere

Question # 16

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

Question # 17

Colour of PCl5is:

Question # 18

Tungsten and uranium are turned to an reaction with HNO3

Question # 19

Allotropic forms of sulpher are

Question # 20

All elements of group VI-A non-metal except

Question # 21

Bone ash contains calcium phosphate

Question # 22

Which has sweetish taste?

Question # 23

Which phosphorus is the most poisonous?

Question # 24

Nitrogen is present in atmosphere by weight:

Question # 25

Which has garlic like odour?

Question # 26

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

Question # 27

Ring testis given by ions.

Question # 28

Group VI-A elements are called:

Question # 29

Allotropic forms of oxygen Te, Se are

Question # 30

SO3 is not absorbed in water directly to or H2SO4 because

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Nitrogen is present in atmosphere by weight:
A. 75%
B. 76%
C. 77%
D. 78%
2 Allotropic forms of sulpher are
A. Two
B. Three
C. Four
D. Five
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 Nitrogen is present in atmosphere by weight
A. 75%
B. 76%
C. 77%
D. 78%
5 Which is the most reactive?
A. White phosphorus
B. Red Phosphorus
C. Graphite
D. Plastic sulphur
6 Which has sweetish taste?
A. N2O
B. NH3
C. Cl2
D. CO2
7 Formation of NO from N2 and O2 requires temp
A. 300C
B. 3000C
C. 30000C
D. 300000C
8 The brown gas formed when metal reduces HNO3is
A. N2O5
B. N2O3
C. NO2
D. NO
9 Which element of group IV-A does not use d — orbital?
A. N
B. P
C. As
D. Sb
10 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above

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