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

Colour of PCl5is:

Question # 2

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

Question # 3

Nitrogen is present in atmosphere

Question # 4

Allotropic forms of oxygen Te, Se are

Question # 5

Which element belongs to group V-A?

Question # 6

Which is nitrous acid?

Question # 7

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

Question # 8

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

Question # 9

Sulphuric acid is used

Question # 10

Aqua Regia has ration of conc. HCl and HNO3.

Question # 11

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

Question # 12

Nitrogen is present in atmosphere by weight

Question # 13

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

Question # 14

Which has sweetish taste?

Question # 15

Which has garlic like odour?

Question # 16

Colour of N2O4 is

Question # 17

Laughing gas is chemically

Question # 18

Formation of NO from N2 and O2 requires temp

Question # 19

Which gas is heavier than air?

Question # 20

NO2forms acidic solution:

Question # 21

NO2 forms acidic solution

Question # 22

Calcium carbonate contains oxygen in it

Question # 23

Tungsten and Uranium are turned to an reaction with HNO3:

Question # 24

SO3 is not absorbed in water directly to or H2SO4 because

Question # 25

All elements of group VI-A non-metal except

Question # 26

Specific gravity of HNO3 is

Question # 27

Oxidation of NO in air produces

Question # 28

Bone ash contains calcium phosphate

Question # 29

Posphorus belongs to a group

Question # 30

Structure of P4 is

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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 NO2forms acidic solution:
A. Red
B. Blue
C. Green
D. Brown
3 Nitrogen is present in atmosphere
A. 21%
B. 36%
C. 89%
D. 78%
4 Tungsten and uranium are turned to an reaction with HNO3
A. Oxides
B. Chlorides
C. Nitrides
D. Nitrates
5 Colour of N2O4 is
A. Raddish brown
B. Yellow
C. Colouries
D. green
6 The most stable phosphorus allotrope is
A. White
B. Red
C. Black
D. All
7 Sulphuric acid is used
A. As fertilizers
B. As dehydrating agent
C. As oxidizing agent
D. All above
8 Tungsten and Uranium are turned to an reaction with HNO3:
A. Oxides
B. chlorides
C. Nitrides
D. Nitrates
9 Aqua Regia has ratio of conc. HCl and HNO3
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
10 The brown gas formed when metal reduces HNO3is
A. N2O5
B. N2O3
C. NO2
D. NO

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