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

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Question # 1

Which is laughing gas?

Question # 2

Allotropic forms of sulpher are

Question # 3

What are non-metals?

Question # 4

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

Question # 5

Which can be prepared from HNO3?

Question # 6

Which has garlic like odour?

Question # 7

Colour of N2O4 is

Question # 8

Colour of PCl5is:

Question # 9

Which gas is heavier than air?

Question # 10

NO2forms acidic solution:

Question # 11

Allotropic forms of phosphorus are

Question # 12

Allotropic forms of oxygen Te, Se are

Question # 13

NO2 forms acidic solution

Question # 14

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

Question # 15

Calcium carbonate contains oxygen in it

Question # 16

Which element belongs to group V-A?

Question # 17

Nitrogen is present in atmosphere

Question # 18

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

Question # 19

SO3 is not absorbed in water directly to or H2SO4 because

Question # 20

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

Question # 21

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

Question # 22

Tungsten and uranium are turned to an reaction with HNO3

Question # 23

Which is nitrous acid?

Question # 24

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

Question # 25

Which has sweetish taste?

Question # 26

Which property is not present in non-metals:

Question # 27

Posphorus belongs to a group

Question # 28

Oxidation of NO in air produces

Question # 29

Bone ash contains calcium phosphate

Question # 30

The brown gas formed when metal reduces HNO3is

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Aqua Regia has ratio of conc. HCl and HNO3
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
2 Reaction of HNO, with very dilute Zinc and at low temperature gives
A. H2
B. NO
C. NO2
D. NH4
3 Which gas is heavier than air?
A. CO2
B. NH3
C. Cl2
D. CO2
4 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All
5 Among group V-A elements, the most electronegative element is:
A. Sb
B. N
C. P
D. As
6 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
7 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2
8 Nitrogen is present in atmosphere
A. 36%
B. 78%
C. 89%
D. 21%
9 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.
10 Oxidation of NO in air produces
A. N2O
B. N2O3
C. N2O4
D. N2O5

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