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

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

Question # 2

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

Question # 3

Aqua Regia has ratio of conc. HCl and HNO3

Question # 4

Posphorus belongs to a group

Question # 5

Laughing gas is chemically

Question # 6

What are non-metals?

Question # 7

SO3 is not absorbed in water directly to or H2SO4 because

Question # 8

Which has garlic like odour?

Question # 9

Which are metalloid?

Question # 10

Structure of P4 is

Question # 11

Tungsten and uranium are turned to an reaction with HNO3

Question # 12

Group VI-A elements are called:

Question # 13

NO2forms acidic solution:

Question # 14

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

Question # 15

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

Question # 16

NO2 forms acidic solution

Question # 17

Ring testis given by ions.

Question # 18

The brown gas formed when metal reduces HNO3is

Question # 19

Colour of PCl5is:

Question # 20

Which gas is heavier than air?

Question # 21

SO2is not absorbed in water directly to or H2SO4because:

Question # 22

Allotropic forms of sulpher are

Question # 23

Bone ash contains calcium phosphate

Question # 24

Oxidation of NO in air produces

Question # 25

Which phosphorus is the most poisonous?

Question # 26

Which is aqua regia?

Question # 27

Which catalyst is used in contact process?

Question # 28

Colour of N2O4 is

Question # 29

Nitrogen is present in atmosphere

Question # 30

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

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Colour of PCl5is:
A. Red
B. Yellowish White
C. Grey
D. Colourless
2 Which is laughing gas?
A. NO
B. N2O
C. NO2
D. NO3
3 Among group V-A elements, the most electronegative element is:
A. Sb
B. N
C. P
D. As
4 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2
5 Specific gravity of HNO3 is
A. 1.35
B. 1.53
C. 1.39
D. 1.93
6 Allotropic forms of sulpher are
A. Two
B. Three
C. Four
D. Five
7 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
8 Oxidation of NO in air produces
A. N2O
B. N2O3
C. N2O4
D. N2O5
9 Group VI-A elements are called:
A. Halogens
B. Electron deficient
C. alkaline earth metal
D. Chalcogens
10 Which is the most reactive?
A. White phosphorus
B. Red Phosphorus
C. Graphite
D. Plastic sulphur

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