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

Which is an inert gas?

Question # 2

Allotropic forms of oxygen Te, Se are

Question # 3

Which element belongs to group V-A?

Question # 4

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

Question # 5

Calcium carbonates contains oxygen in it:

Question # 6

Allotropic forms of sulpher are

Question # 7

Group VI-A elements are called:

Question # 8

The brown gas formed when metal reduces HNO3is

Question # 9

Laughing gas is chemically

Question # 10

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

Question # 11

Which are metalloid?

Question # 12

Nitrogen is present in atmosphere

Question # 13

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

Question # 14

NO2forms acidic solution:

Question # 15

Which has sweetish taste?

Question # 16

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

Question # 17

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

Question # 18

Sulphuric acid is used

Question # 19

Oxidation of NO in air produces

Question # 20

SO3 is not absorbed in water directly to or H2SO4 because

Question # 21

Which has garlic like odour?

Question # 22

Aqua Regia has ration of conc. HCl and HNO3.

Question # 23

Tungsten and uranium are turned to an reaction with HNO3

Question # 24

Colour of N2O4 is

Question # 25

Posphorus belongs to a group

Question # 26

Which gas is heavier than air?

Question # 27

Which property is not present in non-methals

Question # 28

Which is aqua regia?

Question # 29

Which phosphorus is the most poisonous?

Question # 30

Which property is not present in non-metals:

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Tungsten and uranium are turned to an reaction with HNO3
A. Oxides
B. Chlorides
C. Nitrides
D. Nitrates
2 Which gas is heavier than air?
A. CO2
B. NH3
C. Cl2
D. CO2
3 Which is aqua regia?
A. HCL : NO
B. HCl : HNO3
C. HCl : H2SO4
D. H2SO4 : HNO3
4 NO2forms acidic solution:
A. Red
B. Blue
C. Green
D. Brown
5 Which element of group IV-A does not use d-orbital?
A. N
B. P
C. As
D. Sb
6 The most stable phosphorus allotrope is
A. White
B. Red
C. Black
D. All
7 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2
8 Aqua Regia has ration of conc. HCl and HNO3.
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
9 What are non-metals?
A. Sb & Bi
B. P & Bi
C. N & P
D. As & N
10 Which is laughing gas?
A. NO
B. N2O
C. NO2
D. NO3

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