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

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

Question # 2

Colour of N2O4 is

Question # 3

Calcium carbonates contains oxygen in it:

Question # 4

Allotropic forms of oxygen Te, Se are

Question # 5

Specific gravity of HNO3 is

Question # 6

Posphorus belongs to a group

Question # 7

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

Question # 8

Nitrogen is present in atmosphere

Question # 9

Tungsten and uranium are turned to an reaction with HNO3

Question # 10

Which are metalloid?

Question # 11

Which of the following species has the maximum number of unpaired electrons?

Question # 12

Nitrogen is present in atmosphere by weight

Question # 13

Allotropic forms of sulpher are

Question # 14

What are non-metals?

Question # 15

SO3 is not absorbed in water directly to or H2SO4 because

Question # 16

Aqua Regia has ratio of conc. HCl and HNO3

Question # 17

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

Question # 18

Which property is not present in non-methals

Question # 19

Which can be prepared from HNO3?

Question # 20

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

Question # 21

Nitrogen is present in atmosphere by weight:

Question # 22

Calcium carbonate contains oxygen in it

Question # 23

Oxidation of NO in air produces

Question # 24

Structure of P4 is

Question # 25

SO2is not absorbed in water directly to or H2SO4because:

Question # 26

Which is nitrous acid?

Question # 27

Laughing gas is chemically

Question # 28

Which phosphorus is the most poisonous?

Question # 29

Which has sweetish taste?

Question # 30

The most stable phosphorus allotrope is

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Which catalyst is used in contact process?
A. Fe2O3
B. V2O5
C. SO3
D. Ag2O
2 The most stable phosphorus allotrope is
A. White
B. Red
C. Black
D. All
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 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
5 Group VI-A elements are called:
A. Halogens
B. Electron deficient
C. alkaline earth metal
D. Chalcogens
6 Tungsten and Uranium are turned to an reaction with HNO3:
A. Oxides
B. chlorides
C. Nitrides
D. Nitrates
7 Which property is not present in non-methals
A. Predominantly covalent
B. Poor conductor
C. Hig E.N. value
D. High electropositivity
8 Laughing gas is chemically
A. NO
B. N2O
C. NO2
D. N2O4
9 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
10 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

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