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

Group VI-A elements are called:

Question # 2

Nitrogen is present in atmosphere

Question # 3

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

Question # 4

Which phosphorus is the most poisonous?

Question # 5

Ring testis given by ions.

Question # 6

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

Question # 7

Bone ash contains calcium phosphate

Question # 8

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

Question # 9

The most stable phosphorus allotrope is

Question # 10

Nitrogen is present in atmosphere

Question # 11

NO2forms acidic solution:

Question # 12

Which is an inert gas?

Question # 13

Which is nitrous acid?

Question # 14

Which gas is heavier than air?

Question # 15

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

Question # 16

Which is the most reactive?

Question # 17

Calcium carbonates contains oxygen in it:

Question # 18

Which has sweetish taste?

Question # 19

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

Question # 20

Which can be prepared from HNO3?

Question # 21

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

Question # 22

Which is laughing gas?

Question # 23

Which is aqua regia?

Question # 24

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

Question # 25

Which property is not present in non-metals:

Question # 26

Calcium carbonate contains oxygen in it

Question # 27

Oxidation of NO in air produces

Question # 28

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 29

Which property is not present in non-methals

Question # 30

Structure of P4 is

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Laughing gas is chemically
A. NO
B. N2O
C. NO2
D. N2O4
2 Colour of N2O4 is
A. Raddish brown
B. Yellow
C. Colouries
D. green
3 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.
4 Which element belongs to group V-A?
A. Cs
B. Ba
C. Sr
D. Bi
5 Which is laughing gas?
A. NO
B. N2O
C. NO2
D. NO3
6 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All
7 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
8 Which is aqua regia?
A. HCL : NO
B. HCl : HNO3
C. HCl : H2SO4
D. H2SO4 : HNO3
9 Structure of P4 is
A. Trigonal
B. Tetragonal
C. Hexagonal
D. Monoclinic
10 Among group V-A elements, the most electronegative element is:
A. Sb
B. N
C. P
D. As

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