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

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

Question # 2

The most stable phosphorus allotrope is

Question # 3

SO2is not absorbed in water directly to or H2SO4because:

Question # 4

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

Question # 5

Specific gravity of HNO3 is

Question # 6

All elements of group VI-A non-metal except

Question # 7

Aqua Regia has ratio of conc. HCl and HNO3

Question # 8

Allotropic forms of phosphorus are

Question # 9

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

Question # 10

Which property is not present in non-metals:

Question # 11

Which has sweetish taste?

Question # 12

Which is an inert gas?

Question # 13

NO2 forms acidic solution

Question # 14

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

Question # 15

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

Question # 16

Sulphuric acid is used

Question # 17

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

Question # 18

NO2forms acidic solution:

Question # 19

Colour of N2O4 is

Question # 20

Which phosphorus is the most poisonous?

Question # 21

Laughing gas is chemically

Question # 22

Which is laughing gas?

Question # 23

Colour of PCl5is:

Question # 24

Posphorus belongs to a group

Question # 25

Which is the most reactive?

Question # 26

Which property is not present in non-methals

Question # 27

Tungsten and uranium are turned to an reaction with HNO3

Question # 28

Formation of NO from N2 and O2 requires temp

Question # 29

Structure of P4 is

Question # 30

Aqua Regia has ration of conc. HCl and HNO3.

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Nitrogen is present in atmosphere
A. 21%
B. 36%
C. 89%
D. 78%
2 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
3 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
4 Reaction of HNO, with very dilute Zinc and at low temperature gives
A. H2
B. NO
C. NO2
D. NH4
5 Which is an inert gas?
A. Nitrogen
B. Oxygen
C. Hydrogen
D. CO
6 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
7 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
8 Out of all the elements of group V-A, the highest ionization energy is possessed by
A. N
B. P
C. Sb
D. Bi
9 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five
10 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.

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