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

Which is an inert gas?

Question # 2

Which is laughing gas?

Question # 3

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

Question # 4

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

Question # 5

Laughing gas is chemically

Question # 6

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

Question # 7

Nitrogen is present in atmosphere by weight:

Question # 8

Calcium carbonates contains oxygen in it:

Question # 9

Oxidation of NO in air produces

Question # 10

NO2 forms acidic solution

Question # 11

Nitrogen is present in atmosphere by weight

Question # 12

Which element belongs to group V-A?

Question # 13

Tungsten and uranium are turned to an reaction with HNO3

Question # 14

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

Question # 15

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

Question # 16

SO3 is not absorbed in water directly to or H2SO4 because

Question # 17

Which property is not present in non-metals:

Question # 18

Aqua Regia has ratio of conc. HCl and HNO3

Question # 19

Which phosphorus is the most poisonous?

Question # 20

Allotropic forms of sulpher are

Question # 21

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

Question # 22

Colour of N2O4 is

Question # 23

Nitrogen is present in atmosphere

Question # 24

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

Question # 25

Which is the most reactive?

Question # 26

Which are metalloid?

Question # 27

Which catalyst is used in contact process?

Question # 28

SO2is not absorbed in water directly to or H2SO4because:

Question # 29

What are non-metals?

Question # 30

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

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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 Reaction of HNO, with very dilute Zinc and at low temperature gives
A. H2
B. NO
C. NO2
D. NH4
3 Which is the most reactive?
A. White phosphorus
B. Red Phosphorus
C. Graphite
D. Plastic sulphur
4 SO3 is not absorbed in water directly to or H2SO4 because
A. the reaction does not go to completion.
B. the reaction is quite slow.
C. the reaction is exothermic.
D. SO3 is insoluble in water.
5 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
6 Out of all the elements of group V-A , the highest ionization energy is possessed by:
A. N
B. P
C. Sb
D. Bi
7 Which has garlic like odour?
A. N2O
B. NO
C. NO2
D. NH4
8 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
9 Which element of group IV-A does not use d — orbital?
A. N
B. P
C. As
D. Sb
10 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All

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