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 is an inert gas?

Question # 2

Ring testis given by ions.

Question # 3

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

Question # 4

Formation of NO from N2 and O2 requires temp

Question # 5

NO2 forms acidic solution

Question # 6

Aqua Regia has ratio of conc. HCl and HNO3

Question # 7

Which catalyst is used in contact process?

Question # 8

Tungsten and uranium are turned to an reaction with HNO3

Question # 9

Which gas is heavier than air?

Question # 10

SO2is not absorbed in water directly to or H2SO4because:

Question # 11

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

Question # 12

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

Question # 13

Oxidation of NO in air produces

Question # 14

Which is the most reactive?

Question # 15

SO3 is not absorbed in water directly to or H2SO4 because

Question # 16

Which are metalloid?

Question # 17

Specific gravity of HNO3 is

Question # 18

Group VI-A elements are called:

Question # 19

Bone ash contains calcium phosphate

Question # 20

Which element belongs to group V-A?

Question # 21

Calcium carbonate contains oxygen in it

Question # 22

Nitrogen is present in atmosphere by weight

Question # 23

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

Question # 24

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

Question # 25

Nitrogen is present in atmosphere

Question # 26

Which is laughing gas?

Question # 27

Nitrogen is present in atmosphere

Question # 28

Structure of P4 is

Question # 29

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

Question # 30

Sulphuric acid is used

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Which is laughing gas?
A. NO
B. N2O
C. NO2
D. NO3
2 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All
3 Which is aqua regia?
A. HCL : NO
B. HCl : HNO3
C. HCl : H2SO4
D. H2SO4 : HNO3
4 Posphorus belongs to a group
A. III-A
B. IV-A
C. V-A
D. VI-A
5 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.
6 Which are metalloid?
A. Nitrogen and phosphorous
B. Arsenic and phosphorous antimony
C. Phosphorous and arsenic
D. Antimony and bismuth
7 Which of the following species has the maximum number of unpaired electrons?
A. O2
B. O2+
C. O2-
D. O2-2
8 Colour of PCl5is:
A. Red
B. Yellowish White
C. Grey
D. Colourless
9 Calcium carbonates contains oxygen in it:
A. 48%
B. 50%
C. 53%
D. 60%
10 Among group V-A elements, the most electronegative element is:
A. Sb
B. N
C. P
D. As

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