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

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

Question # 2

Nitrogen is present in atmosphere

Question # 3

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

Question # 4

NO2 forms acidic solution

Question # 5

All elements of group VI-A non-metal except

Question # 6

Nitrogen is present in atmosphere by weight:

Question # 7

Which property is not present in non-metals:

Question # 8

Which is nitrous acid?

Question # 9

Which property is not present in non-methals

Question # 10

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

Question # 11

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

Question # 12

Allotropic forms of phosphorus are

Question # 13

Which element belongs to group V-A?

Question # 14

Aqua Regia has ration of conc. HCl and HNO3.

Question # 15

Specific gravity of HNO3 is

Question # 16

Bone ash contains calcium phosphate

Question # 17

Which is laughing gas?

Question # 18

The most stable phosphorus allotrope is

Question # 19

The brown gas formed when metal reduces HNO3is

Question # 20

Structure of P4 is

Question # 21

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

Question # 22

Which is an inert gas?

Question # 23

What are non-metals?

Question # 24

Which phosphorus is the most poisonous?

Question # 25

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

Question # 26

Oxidation of NO in air produces

Question # 27

Posphorus belongs to a group

Question # 28

SO2is not absorbed in water directly to or H2SO4because:

Question # 29

Which has sweetish taste?

Question # 30

Group VI-A elements are called:

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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 NO2forms acidic solution:
A. Red
B. Blue
C. Green
D. Brown
3 Aqua Regia has ratio of conc. HCl and HNO3
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
4 Which is laughing gas?
A. NO
B. N2O
C. NO2
D. NO3
5 Out of all the elements of group V-A, the highest ionization energy is possessed by
A. N
B. P
C. Sb
D. Bi
6 Colour of N2O4 is
A. Raddish brown
B. Yellow
C. Colouries
D. green
7 Allotropic forms of sulpher are
A. Two
B. Three
C. Four
D. Five
8 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.
9 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five
10 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb

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