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

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

Question # 2

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

Question # 3

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

Question # 4

Nitrogen is present in atmosphere

Question # 5

Which property is not present in non-metals:

Question # 6

Tungsten and uranium are turned to an reaction with HNO3

Question # 7

Allotropic forms of oxygen Te, Se are

Question # 8

Ring testis given by ions.

Question # 9

Specific gravity of HNO3 is

Question # 10

Aqua Regia has ratio of conc. HCl and HNO3

Question # 11

Which catalyst is used in contact process?

Question # 12

Laughing gas is chemically

Question # 13

Aqua Regia has ration of conc. HCl and HNO3.

Question # 14

Colour of N2O4 is

Question # 15

NO2 forms acidic solution

Question # 16

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

Question # 17

Oxidation of NO in air produces

Question # 18

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

Question # 19

Allotropic forms of phosphorus are

Question # 20

Which are metalloid?

Question # 21

Which can be prepared from HNO3?

Question # 22

Which has sweetish taste?

Question # 23

What are non-metals?

Question # 24

Which gas is heavier than air?

Question # 25

Which element belongs to group V-A?

Question # 26

All elements of group VI-A non-metal except

Question # 27

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

Question # 28

Which is an inert gas?

Question # 29

NO2forms acidic solution:

Question # 30

Group VI-A elements are called:

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Colour of PCl5is:
A. Red
B. Yellowish White
C. Grey
D. Colourless
4 Aqua Regia has ratio of conc. HCl and HNO3
A. 1 : 2
B. 1 : 3
C. 1 : 4
D. 2 : 3
5 Among group V-A elements, the most electronegative element is:
A. Sb
B. N
C. P
D. As
6 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.
7 Calcium carbonates contains oxygen in it:
A. 48%
B. 50%
C. 53%
D. 60%
8 Oxidation of NO in air produces
A. N2O
B. N2O3
C. N2O4
D. N2O5
9 Ring testis given by ions.
A. Nitrides
B. Nitrates
C. Cyanates
D. Nitriles
10 Nitrogen is present in atmosphere by weight:
A. 75%
B. 76%
C. 77%
D. 78%

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