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

Calcium carbonates contains oxygen in it:

Question # 2

Allotropic forms of sulpher are

Question # 3

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

Question # 4

Which is the most reactive?

Question # 5

The brown gas formed when metal reduces HNO3is

Question # 6

Oxidation of NO in air produces

Question # 7

Posphorus belongs to a group

Question # 8

Nitrogen is present in atmosphere

Question # 9

Nitrogen is present in atmosphere by weight:

Question # 10

Which are metalloid?

Question # 11

Aqua Regia has ration of conc. HCl and HNO3.

Question # 12

Formation of NO from N2 and O2 requires temp

Question # 13

Laughing gas is chemically

Question # 14

Reaction of HNO, with very dilute Zinc and at low temperature gives

Question # 15

SO3 is not absorbed in water directly to or H2SO4 because

Question # 16

Which catalyst is used in contact process?

Question # 17

Specific gravity of HNO3 is

Question # 18

Sulphuric acid is used

Question # 19

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

Question # 20

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

Question # 21

Which gas is heavier than air?

Question # 22

Calcium carbonate contains oxygen in it

Question # 23

NO2 forms acidic solution

Question # 24

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

Question # 25

Colour of PCl5is:

Question # 26

Tungsten and uranium are turned to an reaction with HNO3

Question # 27

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

Question # 28

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

Question # 29

Nitrogen is present in atmosphere

Question # 30

Colour of N2O4 is

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Group VI-A elements are called:
A. Halogens
B. Electron deficient
C. alkaline earth metal
D. Chalcogens
2 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
3 Among group V-A elements, the most electronegative element is:
A. Sb
B. N
C. P
D. As
4 Out of all the elements of group V-A, the highest ionization energy is possessed by
A. N
B. P
C. Sb
D. Bi
5 Nitrogen is present in atmosphere by weight
A. 75%
B. 76%
C. 77%
D. 78%
6 NO2 forms acidic solution
A. Red
B. Blue
C. Green
D. Brown
7 Which property is not present in non-methals
A. Predominantly covalent
B. Poor conductor
C. Hig E.N. value
D. High electropositivity
8 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
9 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
10 Which is nitrous acid?
A. HNO3
B. HNO
C. HNO2
D. H2NO3

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