ECAT Pre Engineering Chemistry Chapter 15 MCQ Test With Answer

Question # 1

NO₂ forms acidic solution

Red A
Blue B
Green C
Brown D

Question # 2

Which catalyst is used in contact process?

Fe₂O₃ A
V₂O₅ B
SO₃ C
Ag₂O D

Question # 3

The brown gas formed when metal reduces HNO₃is

N₂O₅ A
N₂O₃ B
NO₂ C
NO D

Question # 4

Colour of PCl₅is:

Red A
Yellowish White B
Grey C
Colourless D

Question # 5

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

N A
P B
Sb C
Bi D

Question # 6

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 # 7

NO₂forms acidic solution:

Red A
Blue B
Green C
Brown D

Question # 8

Which phosphorus is the most poisonous?

White A
Red B
Black C
All D

Question # 9

Posphorus belongs to a group

III-A A
IV-A B
V-A C
VI-A D

Question # 10

Which element belongs to group V-A?

Cs A
Ba B
Sr C
Bi D

Question # 11

Which can be prepared from HNO₃?

T.N.T A
Fertilizers B
Picric acid C
All of these D

Question # 12

Allotropic forms of sulpher are

Two A
Three B
Four C
Five D

Question # 13

Aqua Regia has ratio of conc. HCl and HNO₃

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

Question # 14

Which is aqua regia?

HCL : NO A
HCl : HNO₃ B
HCl : H₂SO₄ C
H₂SO₄: HNO₃ D

Question # 15

Which is the most reactive?

White phosphorus A
Red Phosphorus B
Graphite C
Plastic sulphur D

Question # 16

Calcium carbonate contains oxygen in it

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

Question # 17

Aqua Regia has ration of conc. HCl and HNO₃.

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

Question # 18

Nitrogen is present in atmosphere

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

Question # 19

Specific gravity of HNO₃ is

1.35 A
1.53 B
1.39 C
1.93 D

Question # 20

SO₂is not absorbed in water directly to or H₂SO₄because:

The reaction does not go to completion A
the reaction is quite slow B
the reaction is exothemic C
SO₃is insolublein water D

Question # 21

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

N A
P B
Sb C
Bi D

Question # 22

What are non-metals?

Sb & Bi A
P & Bi B
N & P C
As & N D

Question # 23

Formation of NO from N₂ and O₂ requires temp

30⁰C A
300⁰C B
3000⁰C C
30000⁰C D

Question # 24

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

O₂ A
O₂⁺ B
O₂^- C
O₂^-2 D

Question # 25

Nitrogen is present in atmosphere by weight

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

Question # 26

Allotropic forms of phosphorus are

three A
four B
five C
six D

Question # 27

Nitrogen is present in atmosphere

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

Question # 28

Colour of N₂O₄ is

Raddish brown A
Yellow B
Colouries C
green D

Question # 29

Tungsten and Uranium are turned to an reaction with HNO₃:

Oxides A
chlorides B
Nitrides C
Nitrates D

Question # 30

Bone ash contains calcium phosphate

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

Sr.#	Question	Answer
1	Which catalyst is used in contact process?	A. Fe₂O₃ B. V₂O₅ C. SO₃ D. Ag₂O
2	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
3	Tungsten and uranium are turned to an reaction with HNO₃	A. Oxides B. Chlorides C. Nitrides D. Nitrates
4	Bone ash contains calcium phosphate	A. 70% B. 80% C. 90% D. 100%
5	Calcium carbonate contains oxygen in it	A. 48% B. 50% C. 53% D. 60%
6	The most stable phosphorus allotrope is	A. White B. Red C. Black D. All
7	Nitrogen is present in atmosphere	A. 21% B. 36% C. 89% D. 78%
8	Tungsten and Uranium are turned to an reaction with HNO₃:	A. Oxides B. chlorides C. Nitrides D. Nitrates
9	Out of all the elements of group V1-A the highest melting and boiling points is shown by the element	A. Te B. Se C. S D. Pb
10	Which is the most reactive?	A. White phosphorus B. Red Phosphorus C. Graphite D. Plastic sulphur

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

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

NO2 forms acidic solution

Which catalyst is used in contact process?

The brown gas formed when metal reduces HNO3is

Colour of PCl5is:

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

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

NO2forms acidic solution:

Which phosphorus is the most poisonous?

Posphorus belongs to a group

Which element belongs to group V-A?

Which can be prepared from HNO3?

Allotropic forms of sulpher are

Aqua Regia has ratio of conc. HCl and HNO3

Which is aqua regia?

Which is the most reactive?

Calcium carbonate contains oxygen in it

Aqua Regia has ration of conc. HCl and HNO3.

Nitrogen is present in atmosphere

Specific gravity of HNO3 is

SO2is not absorbed in water directly to or H2SO4because:

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

What are non-metals?

Formation of NO from N2 and O2 requires temp

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

Nitrogen is present in atmosphere by weight

Allotropic forms of phosphorus are

Nitrogen is present in atmosphere

Colour of N2O4 is

Tungsten and Uranium are turned to an reaction with HNO3:

Bone ash contains calcium phosphate

Prepare Complete Set Wise ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements MCQs Online With Answers

Set 1

Set 2

Topic Test

Top Scorers Of ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements MCQ`s Test

ECAT Chemistry Chapter 15 Important MCQ's

Test Questions

NO₂ forms acidic solution

The brown gas formed when metal reduces HNO₃is

Colour of PCl₅is:

NO₂forms acidic solution:

Which can be prepared from HNO₃?

Aqua Regia has ratio of conc. HCl and HNO₃

Aqua Regia has ration of conc. HCl and HNO₃.

Specific gravity of HNO₃ is

SO₂is not absorbed in water directly to or H₂SO₄because:

Formation of NO from N₂ and O₂ requires temp

Colour of N₂O₄ is

Tungsten and Uranium are turned to an reaction with HNO₃: