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

Nitrogen is present in atmosphere by weight:

Question # 3

Colour of N2O4 is

Question # 4

Which is nitrous acid?

Question # 5

Nitrogen is present in atmosphere

Question # 6

The most stable phosphorus allotrope is

Question # 7

Specific gravity of HNO3 is

Question # 8

SO3 is not absorbed in water directly to or H2SO4 because

Question # 9

Calcium carbonates contains oxygen in it:

Question # 10

Which has garlic like odour?

Question # 11

Laughing gas is chemically

Question # 12

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

Question # 13

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

Question # 14

Which are metalloid?

Question # 15

Nitrogen is present in atmosphere

Question # 16

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

Question # 17

Which is the most reactive?

Question # 18

Allotropic forms of sulpher are

Question # 19

Which is aqua regia?

Question # 20

Group VI-A elements are called:

Question # 21

Which element belongs to group V-A?

Question # 22

Which can be prepared from HNO3?

Question # 23

Calcium carbonate contains oxygen in it

Question # 24

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

Question # 25

Which phosphorus is the most poisonous?

Question # 26

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

Question # 27

Which is an inert gas?

Question # 28

Allotropic forms of phosphorus are

Question # 29

SO2is not absorbed in water directly to or H2SO4because:

Question # 30

Tungsten and Uranium are turned to an reaction with HNO3:

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
2 Out of all the elements of group VI-A the highest melting and boiling points is shown by the elements:
A. Te
B. Se
C. S
D. Pb
3 Allotropic forms of phosphorus are
A. three
B. four
C. five
D. six
4 Which is an inert gas?
A. Nitrogen
B. Oxygen
C. Hydrogen
D. CO
5 Which are metalloid?
A. Nitrogen and phosphorous
B. Arsenic and phosphorous antimony
C. Phosphorous and arsenic
D. Antimony and bismuth
6 Oxidation of NO in air produces
A. N2O
B. N2O3
C. N2O4
D. N2O5
7 Out of all the elements of group V1-A the highest melting and boiling points is shown by the element
A. Te
B. Se
C. S
D. Pb
8 Posphorus belongs to a group
A. III-A
B. IV-A
C. V-A
D. VI-A
9 Ring testis given by ions.
A. Nitrides
B. Nitrates
C. Cyanates
D. Nitriles
10 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%

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