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

Colour of N2O4 is

Question # 2

Calcium carbonate contains oxygen in it

Question # 3

Which element belongs to group V-A?

Question # 4

Which is nitrous acid?

Question # 5

NO2 forms acidic solution

Question # 6

Which is aqua regia?

Question # 7

Which is an inert gas?

Question # 8

Group VI-A elements are called:

Question # 9

Allotropic forms of sulpher are

Question # 10

All elements of group VI-A non-metal except

Question # 11

Which phosphorus is the most poisonous?

Question # 12

What are non-metals?

Question # 13

Oxidation of NO in air produces

Question # 14

Specific gravity of HNO3 is

Question # 15

Tungsten and uranium are turned to an reaction with HNO3

Question # 16

Allotropic forms of phosphorus are

Question # 17

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

Question # 18

Sulphuric acid is used

Question # 19

Aqua Regia has ration of conc. HCl and HNO3.

Question # 20

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 21

Ring testis given by ions.

Question # 22

SO3 is not absorbed in water directly to or H2SO4 because

Question # 23

Nitrogen is present in atmosphere

Question # 24

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

Question # 25

Which catalyst is used in contact process?

Question # 26

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

Question # 27

The most stable phosphorus allotrope is

Question # 28

Laughing gas is chemically

Question # 29

Aqua Regia has ratio of conc. HCl and HNO3

Question # 30

Which is laughing gas?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 NO2forms acidic solution:
A. Red
B. Blue
C. Green
D. Brown
2 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
3 Which has garlic like odour?
A. N2O
B. NO
C. NO2
D. NH4
4 Allotropic forms of phosphorus are
A. three
B. four
C. five
D. six
5 Structure of P4 is
A. Trigonal
B. Tetragonal
C. Hexagonal
D. Monoclinic
6 Nitrogen is present in atmosphere by weight:
A. 75%
B. 76%
C. 77%
D. 78%
7 Out of all the elements of group VI-A the highest melting and boiling points is shown by the elements:
A. Te
B. Se
C. S
D. Pb
8 Group VI-A elements are called:
A. Halogens
B. Electron deficient
C. alkaline earth metal
D. Chalcogens
9 Among group V-A elements, the most electronegative element is:
A. Sb
B. N
C. P
D. As
10 The brown gas formed when metal reduces HNO3is
A. N2O5
B. N2O3
C. NO2
D. NO

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