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

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Question # 1

Group VI-A elements are called:

Question # 2

Nitrogen is present in atmosphere

Question # 3

Oxidation of NO in air produces

Question # 4

Which are metalloid?

Question # 5

Allotropic forms of sulpher are

Question # 6

Specific gravity of HNO3 is

Question # 7

Formation of NO from N2 and O2 requires temp

Question # 8

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

Question # 9

Which is the most reactive?

Question # 10

Calcium carbonate contains oxygen in it

Question # 11

Allotropic forms of oxygen Te, Se are

Question # 12

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

Question # 13

Bone ash contains calcium phosphate

Question # 14

What are non-metals?

Question # 15

Calcium carbonates contains oxygen in it:

Question # 16

NO2forms acidic solution:

Question # 17

Sulphuric acid is used

Question # 18

The brown gas formed when metal reduces HNO3is

Question # 19

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

Question # 20

Aqua Regia has ration of conc. HCl and HNO3.

Question # 21

SO2is not absorbed in water directly to or H2SO4because:

Question # 22

The most stable phosphorus allotrope is

Question # 23

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

Question # 24

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

Question # 25

Which has garlic like odour?

Question # 26

Which has sweetish taste?

Question # 27

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

Question # 28

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

Question # 29

SO3 is not absorbed in water directly to or H2SO4 because

Question # 30

Laughing gas is chemically

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Which element belongs to group V-A?
A. Cs
B. Ba
C. Sr
D. Bi
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 Which is aqua regia?
A. HCL : NO
B. HCl : HNO3
C. HCl : H2SO4
D. H2SO4 : HNO3
4 Which property is not present in non-metals:
A. Predominantly covalent
B. Poor conductor
C. High E.N. Value
D. High electropositivity
5 Which can be prepared from HNO3?
A. T.N.T
B. Fertilizers
C. Picric acid
D. All of these
6 Nitrogen is present in atmosphere by weight
A. 75%
B. 76%
C. 77%
D. 78%
7 Which are metalloid?
A. Nitrogen and phosphorous
B. Arsenic and phosphorous antimony
C. Phosphorous and arsenic
D. Antimony and bismuth
8 Calcium carbonate contains oxygen in it
A. 48%
B. 50%
C. 53%
D. 60%
9 Which is the most reactive?
A. White phosphorus
B. Red Phosphorus
C. Graphite
D. Plastic sulphur
10 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2

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