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

All elements of group VI-A non-metal except

Question # 2

Oxidation of NO in air produces

Question # 3

Formation of NO from N2 and O2 requires temp

Question # 4

Aqua Regia has ration of conc. HCl and HNO3.

Question # 5

Specific gravity of HNO3 is

Question # 6

Calcium carbonate contains oxygen in it

Question # 7

Structure of P4 is

Question # 8

NO2 forms acidic solution

Question # 9

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

Question # 10

Which are metalloid?

Question # 11

Which is laughing gas?

Question # 12

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 13

Laughing gas is chemically

Question # 14

Allotropic forms of phosphorus are

Question # 15

Bone ash contains calcium phosphate

Question # 16

Posphorus belongs to a group

Question # 17

Nitrogen is present in atmosphere

Question # 18

Which phosphorus is the most poisonous?

Question # 19

Colour of N2O4 is

Question # 20

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

Question # 21

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

Question # 22

Which has sweetish taste?

Question # 23

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

Question # 24

SO2is not absorbed in water directly to or H2SO4because:

Question # 25

Aqua Regia has ratio of conc. HCl and HNO3

Question # 26

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

Question # 27

Which property is not present in non-methals

Question # 28

Group VI-A elements are called:

Question # 29

SO3 is not absorbed in water directly to or H2SO4 because

Question # 30

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

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ECAT Class Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five
2 Nitrogen is present in atmosphere by weight:
A. 75%
B. 76%
C. 77%
D. 78%
3 Calcium carbonates contains oxygen in it:
A. 48%
B. 50%
C. 53%
D. 60%
4 Specific gravity of HNO3 is
A. 1.35
B. 1.53
C. 1.39
D. 1.93
5 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
6 Ring testis given by ions.
A. Nitrides
B. Nitrates
C. Cyanates
D. Nitriles
7 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.
8 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
9 Nitrogen is present in atmosphere
A. 21%
B. 36%
C. 89%
D. 78%
10 Which can be prepared from HNO3?
A. T.N.T
B. Fertilizers
C. Picric acid
D. All of these

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