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 has sweetish taste?

Question # 2

Which are metalloid?

Question # 3

Which phosphorus is the most poisonous?

Question # 4

Calcium carbonate contains oxygen in it

Question # 5

The brown gas formed when metal reduces HNO3is

Question # 6

SO3 is not absorbed in water directly to or H2SO4 because

Question # 7

SO2is not absorbed in water directly to or H2SO4because:

Question # 8

Which property is not present in non-methals

Question # 9

Which property is not present in non-metals:

Question # 10

Aqua Regia has ratio of conc. HCl and HNO3

Question # 11

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

Question # 12

Bone ash contains calcium phosphate

Question # 13

Nitrogen is present in atmosphere by weight:

Question # 14

Nitrogen is present in atmosphere by weight

Question # 15

Sulphuric acid is used

Question # 16

Posphorus belongs to a group

Question # 17

Which gas is heavier than air?

Question # 18

What are non-metals?

Question # 19

Ring testis given by ions.

Question # 20

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

Question # 21

Which has garlic like odour?

Question # 22

NO2forms acidic solution:

Question # 23

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

Question # 24

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

Question # 25

Which is an inert gas?

Question # 26

Allotropic forms of phosphorus are

Question # 27

Aqua Regia has ration of conc. HCl and HNO3.

Question # 28

NO2 forms acidic solution

Question # 29

The most stable phosphorus allotrope is

Question # 30

Which is nitrous acid?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 Bone ash contains calcium phosphate
A. 70%
B. 80%
C. 90%
D. 100%
3 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
4 Nitrogen is present in atmosphere by weight:
A. 75%
B. 76%
C. 77%
D. 78%
5 Colour of N2O4 is
A. Raddish brown
B. Yellow
C. Colouries
D. green
6 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2
7 What are non-metals?
A. Sb & Bi
B. P & Bi
C. N & P
D. As & N
8 SO3 is not absorbed in water directly to or H2SO4 because
A. the reaction does not go to completion.
B. the reaction is quite slow.
C. the reaction is exothermic.
D. SO3 is insoluble in water.
9 Nitrogen is present in atmosphere
A. 21%
B. 36%
C. 89%
D. 78%
10 Formation of NO from N2 and O2 requires temp
A. 300C
B. 3000C
C. 30000C
D. 300000C

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