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

Calcium carbonate contains oxygen in it

Question # 2

Which is the most reactive?

Question # 3

Aqua Regia has ratio of conc. HCl and HNO3

Question # 4

Oxidation of NO in air produces

Question # 5

Tungsten and uranium are turned to an reaction with HNO3

Question # 6

Sulphuric acid is used

Question # 7

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

Question # 8

Nitrogen is present in atmosphere

Question # 9

Which is aqua regia?

Question # 10

Which property is not present in non-methals

Question # 11

The brown gas formed when metal reduces HNO3is

Question # 12

The most stable phosphorus allotrope is

Question # 13

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 14

Colour of PCl5is:

Question # 15

Structure of P4 is

Question # 16

Which is laughing gas?

Question # 17

SO2is not absorbed in water directly to or H2SO4because:

Question # 18

Calcium carbonates contains oxygen in it:

Question # 19

Specific gravity of HNO3 is

Question # 20

Nitrogen is present in atmosphere

Question # 21

Laughing gas is chemically

Question # 22

Which phosphorus is the most poisonous?

Question # 23

All elements of group VI-A non-metal except

Question # 24

NO2 forms acidic solution

Question # 25

Which property is not present in non-metals:

Question # 26

Allotropic forms of oxygen Te, Se are

Question # 27

Group VI-A elements are called:

Question # 28

Nitrogen is present in atmosphere by weight

Question # 29

Posphorus belongs to a group

Question # 30

Which is an inert gas?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Out of all the elements of group V-A, the highest ionization energy is possessed by
A. N
B. P
C. Sb
D. Bi
2 The most stable phosphorus allotrope is
A. White
B. Red
C. Black
D. All
3 Calcium carbonate contains oxygen in it
A. 48%
B. 50%
C. 53%
D. 60%
4 Tungsten and Uranium are turned to an reaction with HNO3:
A. Oxides
B. chlorides
C. Nitrides
D. Nitrates
5 Which element of group IV-A does not use d — orbital?
A. N
B. P
C. As
D. Sb
6 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
7 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All
8 Laughing gas is chemically
A. NO
B. N2O
C. NO2
D. N2O4
9 Calcium carbonates contains oxygen in it:
A. 48%
B. 50%
C. 53%
D. 60%
10 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five

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