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

Nitrogen is present in atmosphere by weight:

Question # 2

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

Question # 3

Which is the most reactive?

Question # 4

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

Question # 5

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

Question # 6

Which gas is heavier than air?

Question # 7

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

Question # 8

SO3 is not absorbed in water directly to or H2SO4 because

Question # 9

The most stable phosphorus allotrope is

Question # 10

Which is aqua regia?

Question # 11

The brown gas formed when metal reduces HNO3is

Question # 12

Colour of N2O4 is

Question # 13

SO2is not absorbed in water directly to or H2SO4because:

Question # 14

Which can be prepared from HNO3?

Question # 15

Group VI-A elements are called:

Question # 16

Which element belongs to group V-A?

Question # 17

All elements of group VI-A non-metal except

Question # 18

Allotropic forms of sulpher are

Question # 19

Calcium carbonate contains oxygen in it

Question # 20

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

Question # 21

Which has garlic like odour?

Question # 22

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

Question # 23

Calcium carbonates contains oxygen in it:

Question # 24

Ring testis given by ions.

Question # 25

Nitrogen is present in atmosphere

Question # 26

Which has sweetish taste?

Question # 27

Formation of NO from N2 and O2 requires temp

Question # 28

Which property is not present in non-methals

Question # 29

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 30

Which is nitrous acid?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 SO2is not absorbed in water directly to or H2SO4because:
A. The reaction does not go to completion
B. the reaction is quite slow
C. the reaction is exothemic
D. SO3is insolublein water
2 Tungsten and Uranium are turned to an reaction with HNO3:
A. Oxides
B. chlorides
C. Nitrides
D. Nitrates
3 Which is an inert gas?
A. Nitrogen
B. Oxygen
C. Hydrogen
D. CO
4 Out of all the elements of group V-A, the highest ionization energy is possessed by
A. N
B. P
C. Sb
D. Bi
5 Group VI-A elements are called:
A. Halogens
B. Electron deficient
C. alkaline earth metal
D. Chalcogens
6 The brown gas formed when metal reduces HNO3is
A. N2O5
B. N2O3
C. NO2
D. NO
7 Nitrogen is present in atmosphere by weight:
A. 75%
B. 76%
C. 77%
D. 78%
8 Specific gravity of HNO3 is
A. 1.35
B. 1.53
C. 1.39
D. 1.93
9 Posphorus belongs to a group
A. III-A
B. IV-A
C. V-A
D. VI-A
10 Tungsten and uranium are turned to an reaction with HNO3
A. Oxides
B. Chlorides
C. Nitrides
D. Nitrates

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