ECAT Pre Engineering Chemistry Chapter 15 MCQ Test With Answer

Question # 1

Bone ash contains calcium phosphate

70% A
80% B
90% C
100% D

Question # 2

Which catalyst is used in contact process?

Fe₂O₃ A
V₂O₅ B
SO₃ C
Ag₂O D

Question # 3

Which is laughing gas?

NO A
N₂O B
NO₂ C
NO₃ D

Question # 4

Calcium carbonates contains oxygen in it:

48% A
50% B
53% C
60% D

Question # 5

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

N A
P B
As C
Sb D

Question # 6

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

Sb A
N B
P C
As D

Question # 7

Tungsten and uranium are turned to an reaction with HNO₃

Oxides A
Chlorides B
Nitrides C
Nitrates D

Question # 8

Structure of P₄ is

Trigonal A
Tetragonal B
Hexagonal C
Monoclinic D

Question # 9

Aqua Regia has ratio of conc. HCl and HNO₃

1 : 2 A
1 : 3 B
1 : 4 C
2 : 3 D

Question # 10

Nitrogen is present in atmosphere

36% A
78% B
89% C
21% D

Question # 11

NO₂forms acidic solution:

Red A
Blue B
Green C
Brown D

Question # 12

Nitrogen is present in atmosphere by weight

75% A
76% B
77% C
78% D

Question # 13

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

N A
P B
As C
Sb D

Question # 14

Formation of NO from N₂ and O₂ requires temp

30⁰C A
300⁰C B
3000⁰C C
30000⁰C D

Question # 15

SO₃ is not absorbed in water directly to or H₂SO₄ because

the reaction does not go to completion. A
the reaction is quite slow. B
the reaction is exothermic. C
SO₃ is insoluble in water. D

Question # 16

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

Te A
Se B
S C
Pb D

Question # 17

Which property is not present in non-methals

Predominantly covalent A
Poor conductor B
Hig E.N. value C
High electropositivity D

Question # 18

Which gas is heavier than air?

CO₂ A
NH₃ B
Cl₂ C
CO₂ D

Question # 19

Calcium carbonate contains oxygen in it

48% A
50% B
53% C
60% D

Question # 20

Allotropic forms of oxygen Te, Se are

Two A
Three B
Four C
Five D

Question # 21

Which is nitrous acid?

HNO₃ A
HNO B
HNO₂ C
H₂NO₃ D

Question # 22

The brown gas formed when metal reduces HNO₃is

N₂O₅ A
N₂O₃ B
NO₂ C
NO D

Question # 23

Allotropic forms of phosphorus are

three A
four B
five C
six D

Question # 24

Ring testis given by ions.

Nitrides A
Nitrates B
Cyanates C
Nitriles D

Question # 25

Aqua Regia has ration of conc. HCl and HNO₃.

1 : 2 A
1 : 3 B
1 : 4 C
2 : 3 D

Question # 26

Which is an inert gas?

Nitrogen A
Oxygen B
Hydrogen C
CO D

Question # 27

Group VI-A elements are called:

Halogens A
Electron deficient B
alkaline earth metal C
Chalcogens D

Question # 28

The most stable phosphorus allotrope is

White A
Red B
Black C
All D

Question # 29

Nitrogen is present in atmosphere

21% A
36% B
89% C
78% D

Question # 30

Tungsten and Uranium are turned to an reaction with HNO₃:

Oxides A
chlorides B
Nitrides C
Nitrates D

Sr.#	Question	Answer
1	NO₂ forms acidic solution	A. Red B. Blue C. Green D. Brown
2	Which property is not present in non-metals:	A. Predominantly covalent B. Poor conductor C. High E.N. Value D. High electropositivity
3	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.
4	Ring testis given by ions.	A. Nitrides B. Nitrates C. Cyanates D. Nitriles
5	Structure of P₄ is	A. Trigonal B. Tetragonal C. Hexagonal D. Monoclinic
6	Sulphuric acid is used	A. As fertilizers B. As dehydrating agent C. As oxidizing agent D. All above
7	Which is laughing gas?	A. NO B. N₂O C. NO₂ D. NO₃
8	The most stable phosphorus allotrope is	A. White B. Red C. Black D. All
9	Nitrogen is present in atmosphere	A. 36% B. 78% C. 89% D. 21%
10	Tungsten and Uranium are turned to an reaction with HNO₃:	A. Oxides B. chlorides C. Nitrides D. Nitrates

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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

ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements

Bone ash contains calcium phosphate

Which catalyst is used in contact process?

Which is laughing gas?

Calcium carbonates contains oxygen in it:

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

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

Tungsten and uranium are turned to an reaction with HNO3

Structure of P4 is

Aqua Regia has ratio of conc. HCl and HNO3

Nitrogen is present in atmosphere

NO2forms acidic solution:

Nitrogen is present in atmosphere by weight

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

Formation of NO from N2 and O2 requires temp

SO3 is not absorbed in water directly to or H2SO4 because

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

Which property is not present in non-methals

Which gas is heavier than air?

Calcium carbonate contains oxygen in it

Allotropic forms of oxygen Te, Se are

Which is nitrous acid?

The brown gas formed when metal reduces HNO3is

Allotropic forms of phosphorus are

Ring testis given by ions.

Aqua Regia has ration of conc. HCl and HNO3.

Which is an inert gas?

Group VI-A elements are called:

The most stable phosphorus allotrope is

Nitrogen is present in atmosphere

Tungsten and Uranium are turned to an reaction with HNO3:

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Tungsten and uranium are turned to an reaction with HNO₃

Structure of P₄ is

Aqua Regia has ratio of conc. HCl and HNO₃

NO₂forms acidic solution:

Formation of NO from N₂ and O₂ requires temp

SO₃ is not absorbed in water directly to or H₂SO₄ because

The brown gas formed when metal reduces HNO₃is

Aqua Regia has ration of conc. HCl and HNO₃.

Tungsten and Uranium are turned to an reaction with HNO₃: