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

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

Question # 2

Nitrogen is present in atmosphere by weight:

Question # 3

Which is an inert gas?

Question # 4

Which property is not present in non-methals

Question # 5

Which can be prepared from HNO3?

Question # 6

Allotropic forms of phosphorus are

Question # 7

Which has garlic like odour?

Question # 8

Allotropic forms of sulpher are

Question # 9

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 10

Which gas is heavier than air?

Question # 11

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

Question # 12

Sulphuric acid is used

Question # 13

Which element belongs to group V-A?

Question # 14

Which is aqua regia?

Question # 15

Group VI-A elements are called:

Question # 16

Specific gravity of HNO3 is

Question # 17

Which is nitrous acid?

Question # 18

Calcium carbonates contains oxygen in it:

Question # 19

Which are metalloid?

Question # 20

Which is the most reactive?

Question # 21

The brown gas formed when metal reduces HNO3is

Question # 22

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

Question # 23

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

Question # 24

Laughing gas is chemically

Question # 25

Nitrogen is present in atmosphere

Question # 26

Ring testis given by ions.

Question # 27

SO3 is not absorbed in water directly to or H2SO4 because

Question # 28

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

Question # 29

Colour of N2O4 is

Question # 30

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

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Structure of P4 is
A. Trigonal
B. Tetragonal
C. Hexagonal
D. Monoclinic
2 Which has garlic like odour?
A. N2O
B. NO
C. NO2
D. NH4
3 Which element of group IV-A does not use d — orbital?
A. N
B. P
C. As
D. Sb
4 Nitrogen is present in atmosphere
A. 21%
B. 36%
C. 89%
D. 78%
5 Aqua Regia has ration of conc. HCl and HNO3.
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
6 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five
7 Which catalyst is used in contact process?
A. Fe2O3
B. V2O5
C. SO3
D. Ag2O
8 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
9 Ring testis given by ions.
A. Nitrides
B. Nitrates
C. Cyanates
D. Nitriles
10 Which is nitrous acid?
A. HNO3
B. HNO
C. HNO2
D. H2NO3

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