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

Oxidation of NO in air produces

Question # 2

Which element belongs to group V-A?

Question # 3

Allotropic forms of oxygen Te, Se are

Question # 4

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

Question # 5

Laughing gas is chemically

Question # 6

Which is laughing gas?

Question # 7

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 8

Tungsten and uranium are turned to an reaction with HNO3

Question # 9

Nitrogen is present in atmosphere by weight:

Question # 10

Which phosphorus is the most poisonous?

Question # 11

Which are metalloid?

Question # 12

Allotropic forms of phosphorus are

Question # 13

Colour of N2O4 is

Question # 14

Nitrogen is present in atmosphere

Question # 15

Colour of PCl5is:

Question # 16

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

Question # 17

Structure of P4 is

Question # 18

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

Question # 19

Which catalyst is used in contact process?

Question # 20

Nitrogen is present in atmosphere

Question # 21

Which is aqua regia?

Question # 22

Ring testis given by ions.

Question # 23

Group VI-A elements are called:

Question # 24

What are non-metals?

Question # 25

Which property is not present in non-metals:

Question # 26

Which is nitrous acid?

Question # 27

SO2is not absorbed in water directly to or H2SO4because:

Question # 28

Which is the most reactive?

Question # 29

Calcium carbonate contains oxygen in it

Question # 30

Bone ash contains calcium phosphate

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Bone ash contains calcium phosphate
A. 70%
B. 80%
C. 90%
D. 100%
2 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five
3 Calcium carbonates contains oxygen in it:
A. 48%
B. 50%
C. 53%
D. 60%
4 Posphorus belongs to a group
A. III-A
B. IV-A
C. V-A
D. VI-A
5 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
6 Specific gravity of HNO3 is
A. 1.35
B. 1.53
C. 1.39
D. 1.93
7 Which catalyst is used in contact process?
A. Fe2O3
B. V2O5
C. SO3
D. Ag2O
8 Out of all the elements of group VI-A the highest melting and boiling points is shown by the elements:
A. Te
B. Se
C. S
D. Pb
9 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
10 Nitrogen is present in atmosphere
A. 21%
B. 36%
C. 89%
D. 78%

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