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

Aqua Regia has ration of conc. HCl and HNO3.

Question # 2

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

Question # 3

The most stable phosphorus allotrope is

Question # 4

The brown gas formed when metal reduces HNO3is

Question # 5

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

Question # 6

What are non-metals?

Question # 7

Which are metalloid?

Question # 8

Allotropic forms of sulpher are

Question # 9

Calcium carbonates contains oxygen in it:

Question # 10

Nitrogen is present in atmosphere

Question # 11

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 12

Which property is not present in non-metals:

Question # 13

Nitrogen is present in atmosphere by weight:

Question # 14

Which can be prepared from HNO3?

Question # 15

Specific gravity of HNO3 is

Question # 16

Colour of PCl5is:

Question # 17

Group VI-A elements are called:

Question # 18

SO2is not absorbed in water directly to or H2SO4because:

Question # 19

Which gas is heavier than air?

Question # 20

Laughing gas is chemically

Question # 21

Calcium carbonate contains oxygen in it

Question # 22

Formation of NO from N2 and O2 requires temp

Question # 23

Bone ash contains calcium phosphate

Question # 24

Which is an inert gas?

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

Which has sweetish taste?

Question # 28

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

Question # 29

Which has garlic like odour?

Question # 30

Which phosphorus is the most poisonous?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Which can be prepared from HNO3?
A. T.N.T
B. Fertilizers
C. Picric acid
D. All of these
2 Aqua Regia has ratio of conc. HCl and HNO3
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
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 Structure of P4 is
A. Trigonal
B. Tetragonal
C. Hexagonal
D. Monoclinic
6 SO2is not absorbed in water directly to or H2SO4because:
A. The reaction does not go to completion
B. the reaction is quite slow
C. the reaction is exothemic
D. SO3is insolublein water
7 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
8 Calcium carbonate contains oxygen in it
A. 48%
B. 50%
C. 53%
D. 60%
9 Specific gravity of HNO3 is
A. 1.35
B. 1.53
C. 1.39
D. 1.93
10 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five

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