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

Laughing gas is chemically

Question # 2

Colour of N2O4 is

Question # 3

The most stable phosphorus allotrope is

Question # 4

SO2is not absorbed in water directly to or H2SO4because:

Question # 5

Allotropic forms of oxygen Te, Se are

Question # 6

Tungsten and uranium are turned to an reaction with HNO3

Question # 7

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

Question # 8

Bone ash contains calcium phosphate

Question # 9

Formation of NO from N2 and O2 requires temp

Question # 10

Structure of P4 is

Question # 11

Aqua Regia has ratio of conc. HCl and HNO3

Question # 12

Calcium carbonate contains oxygen in it

Question # 13

Which is laughing gas?

Question # 14

SO3 is not absorbed in water directly to or H2SO4 because

Question # 15

Aqua Regia has ration of conc. HCl and HNO3.

Question # 16

Which phosphorus is the most poisonous?

Question # 17

Which is aqua regia?

Question # 18

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

Question # 19

NO2forms acidic solution:

Question # 20

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

Question # 21

Group VI-A elements are called:

Question # 22

Nitrogen is present in atmosphere

Question # 23

Colour of PCl5is:

Question # 24

The brown gas formed when metal reduces HNO3is

Question # 25

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

Question # 26

Which property is not present in non-metals:

Question # 27

Nitrogen is present in atmosphere

Question # 28

Specific gravity of HNO3 is

Question # 29

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

Question # 30

Which is the most reactive?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
2 Out of all the elements of group V-A, the highest ionization energy is possessed by
A. N
B. P
C. Sb
D. Bi
3 All elements of group VI-A non-metal except
A. Te
B. S
C. Se
D. Po
4 Oxidation of NO in air produces
A. N2O
B. N2O3
C. N2O4
D. N2O5
5 What are non-metals?
A. Sb & Bi
B. P & Bi
C. N & P
D. As & N
6 Aqua Regia has ratio of conc. HCl and HNO3
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
7 Colour of N2O4 is
A. Raddish brown
B. Yellow
C. Colouries
D. green
8 Which is an inert gas?
A. Nitrogen
B. Oxygen
C. Hydrogen
D. CO
9 Which is the most reactive?
A. White phosphorus
B. Red Phosphorus
C. Graphite
D. Plastic sulphur
10 Which property is not present in non-methals
A. Predominantly covalent
B. Poor conductor
C. Hig E.N. value
D. High electropositivity

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