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

Sulphuric acid is used

Question # 2

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

Question # 3

Which is the most reactive?

Question # 4

NO2 forms acidic solution

Question # 5

Which phosphorus is the most poisonous?

Question # 6

Colour of N2O4 is

Question # 7

SO3 is not absorbed in water directly to or H2SO4 because

Question # 8

SO2is not absorbed in water directly to or H2SO4because:

Question # 9

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

Question # 10

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

Question # 11

Tungsten and uranium are turned to an reaction with HNO3

Question # 12

Oxidation of NO in air produces

Question # 13

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

Question # 14

Group VI-A elements are called:

Question # 15

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

Question # 16

Which is aqua regia?

Question # 17

Nitrogen is present in atmosphere

Question # 18

Formation of NO from N2 and O2 requires temp

Question # 19

Which is laughing gas?

Question # 20

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

Question # 21

Which element belongs to group V-A?

Question # 22

Laughing gas is chemically

Question # 23

Which catalyst is used in contact process?

Question # 24

The brown gas formed when metal reduces HNO3is

Question # 25

Which has garlic like odour?

Question # 26

All elements of group VI-A non-metal except

Question # 27

NO2forms acidic solution:

Question # 28

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 29

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

Question # 30

Which is nitrous acid?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2
2 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
3 Which property is not present in non-metals:
A. Predominantly covalent
B. Poor conductor
C. High E.N. Value
D. High electropositivity
4 Laughing gas is chemically
A. NO
B. N2O
C. NO2
D. N2O4
5 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
6 Allotropic forms of sulpher are
A. Two
B. Three
C. Four
D. Five
7 All elements of group VI-A non-metal except
A. Te
B. S
C. Se
D. Po
8 What are non-metals?
A. Sb & Bi
B. P & Bi
C. N & P
D. As & N
9 Which is aqua regia?
A. HCL : NO
B. HCl : HNO3
C. HCl : H2SO4
D. H2SO4 : HNO3
10 NO2forms acidic solution:
A. Red
B. Blue
C. Green
D. Brown

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