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

Which is laughing gas?

Question # 2

Colour of PCl5is:

Question # 3

Allotropic forms of sulpher are

Question # 4

Aqua Regia has ratio of conc. HCl and HNO3

Question # 5

NO2forms acidic solution:

Question # 6

Sulphuric acid is used

Question # 7

Calcium carbonate contains oxygen in it

Question # 8

Allotropic forms of oxygen Te, Se are

Question # 9

Which property is not present in non-methals

Question # 10

Specific gravity of HNO3 is

Question # 11

Which phosphorus is the most poisonous?

Question # 12

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

Question # 13

Laughing gas is chemically

Question # 14

Bone ash contains calcium phosphate

Question # 15

The most stable phosphorus allotrope is

Question # 16

SO3 is not absorbed in water directly to or H2SO4 because

Question # 17

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

Question # 18

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

Question # 19

Which is the most reactive?

Question # 20

Aqua Regia has ration of conc. HCl and HNO3.

Question # 21

The brown gas formed when metal reduces HNO3is

Question # 22

Which is an inert gas?

Question # 23

What are non-metals?

Question # 24

Which has garlic like odour?

Question # 25

All elements of group VI-A non-metal except

Question # 26

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

Question # 27

Nitrogen is present in atmosphere

Question # 28

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

Question # 29

Structure of P4 is

Question # 30

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

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
3 Which property is not present in non-metals:
A. Predominantly covalent
B. Poor conductor
C. High E.N. Value
D. High electropositivity
4 Calcium carbonates contains oxygen in it:
A. 48%
B. 50%
C. 53%
D. 60%
5 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.
6 Allotropic forms of phosphorus are
A. three
B. four
C. five
D. six
7 Nitrogen is present in atmosphere by weight
A. 75%
B. 76%
C. 77%
D. 78%
8 Aqua Regia has ration of conc. HCl and HNO3.
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
9 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
10 Which gas is heavier than air?
A. CO2
B. NH3
C. Cl2
D. CO2

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