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

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

Question # 2

Which has garlic like odour?

Question # 3

Which property is not present in non-methals

Question # 4

Posphorus belongs to a group

Question # 5

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

Question # 6

Which is the most reactive?

Question # 7

Which has sweetish taste?

Question # 8

Sulphuric acid is used

Question # 9

SO3 is not absorbed in water directly to or H2SO4 because

Question # 10

Aqua Regia has ratio of conc. HCl and HNO3

Question # 11

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

Question # 12

Which are metalloid?

Question # 13

Aqua Regia has ration of conc. HCl and HNO3.

Question # 14

Oxidation of NO in air produces

Question # 15

The most stable phosphorus allotrope is

Question # 16

Which property is not present in non-metals:

Question # 17

Which phosphorus is the most poisonous?

Question # 18

Which catalyst is used in contact process?

Question # 19

Which is laughing gas?

Question # 20

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

Question # 21

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

Question # 22

Which can be prepared from HNO3?

Question # 23

Group VI-A elements are called:

Question # 24

Nitrogen is present in atmosphere by weight:

Question # 25

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

Question # 26

Laughing gas is chemically

Question # 27

Tungsten and uranium are turned to an reaction with HNO3

Question # 28

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 29

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

Question # 30

SO2is not absorbed in water directly to or H2SO4because:

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
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 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
4 Bone ash contains calcium phosphate
A. 70%
B. 80%
C. 90%
D. 100%
5 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All
6 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
7 Which property is not present in non-methals
A. Predominantly covalent
B. Poor conductor
C. Hig E.N. value
D. High electropositivity
8 Oxidation of NO in air produces
A. N2O
B. N2O3
C. N2O4
D. N2O5
9 Allotropic forms of phosphorus are
A. three
B. four
C. five
D. six
10 Calcium carbonate contains oxygen in it
A. 48%
B. 50%
C. 53%
D. 60%

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