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 can be prepared from HNO3?

Question # 2

Aqua Regia has ratio of conc. HCl and HNO3

Question # 3

Laughing gas is chemically

Question # 4

Allotropic forms of oxygen Te, Se are

Question # 5

Nitrogen is present in atmosphere by weight:

Question # 6

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

Question # 7

Which are metalloid?

Question # 8

Which gas is heavier than air?

Question # 9

Which is nitrous acid?

Question # 10

Colour of N2O4 is

Question # 11

SO3 is not absorbed in water directly to or H2SO4 because

Question # 12

Which property is not present in non-metals:

Question # 13

Which is laughing gas?

Question # 14

Calcium carbonates contains oxygen in it:

Question # 15

Calcium carbonate contains oxygen in it

Question # 16

Formation of NO from N2 and O2 requires temp

Question # 17

NO2 forms acidic solution

Question # 18

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

Question # 19

Sulphuric acid is used

Question # 20

Which phosphorus is the most poisonous?

Question # 21

Which catalyst is used in contact process?

Question # 22

Group VI-A elements are called:

Question # 23

Specific gravity of HNO3 is

Question # 24

Nitrogen is present in atmosphere

Question # 25

Which has sweetish taste?

Question # 26

Tungsten and uranium are turned to an reaction with HNO3

Question # 27

Structure of P4 is

Question # 28

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

Question # 29

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

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 Specific gravity of HNO3 is
A. 1.35
B. 1.53
C. 1.39
D. 1.93
2 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
3 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
4 Which gas is heavier than air?
A. CO2
B. NH3
C. Cl2
D. CO2
5 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2
6 Which has garlic like odour?
A. N2O
B. NO
C. NO2
D. NH4
7 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
8 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
9 Which are metalloid?
A. Nitrogen and phosphorous
B. Arsenic and phosphorous antimony
C. Phosphorous and arsenic
D. Antimony and bismuth
10 Formation of NO from N2 and O2 requires temp
A. 300C
B. 3000C
C. 30000C
D. 300000C

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