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

NO2forms acidic solution:

Question # 2

Which can be prepared from HNO3?

Question # 3

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

Question # 4

Sulphuric acid is used

Question # 5

NO2 forms acidic solution

Question # 6

Which is aqua regia?

Question # 7

Nitrogen is present in atmosphere

Question # 8

Calcium carbonate contains oxygen in it

Question # 9

Which catalyst is used in contact process?

Question # 10

Which gas is heavier than air?

Question # 11

Oxidation of NO in air produces

Question # 12

All elements of group VI-A non-metal except

Question # 13

What are non-metals?

Question # 14

Which is an inert gas?

Question # 15

Specific gravity of HNO3 is

Question # 16

The most stable phosphorus allotrope is

Question # 17

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

Question # 18

Colour of PCl5is:

Question # 19

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

Question # 20

Allotropic forms of phosphorus are

Question # 21

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

Question # 22

Ring testis given by ions.

Question # 23

Which phosphorus is the most poisonous?

Question # 24

Formation of NO from N2 and O2 requires temp

Question # 25

SO3 is not absorbed in water directly to or H2SO4 because

Question # 26

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

Question # 27

Tungsten and uranium are turned to an reaction with HNO3

Question # 28

Posphorus belongs to a group

Question # 29

Structure of P4 is

Question # 30

Which is the most reactive?

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ECAT Chemistry Chapter 15 Important MCQ's

Sr.# Question Answer
1 Colour of N2O4 is
A. Raddish brown
B. Yellow
C. Colouries
D. green
2 Which is the most reactive?
A. White phosphorus
B. Red Phosphorus
C. Graphite
D. Plastic sulphur
3 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.
4 The brown gas formed when metal reduces HNO3is
A. N2O5
B. N2O3
C. NO2
D. NO
5 Which phosphorus is the most poisonous?
A. White
B. Red
C. Black
D. All
6 Among group V-A elements, the most electronegative element is
A. Sb
B. N
C. P
D. As
7 Allotropic forms of oxygen Te, Se are
A. Two
B. Three
C. Four
D. Five
8 Formation of NO from N2 and O2 requires temp
A. 300C
B. 3000C
C. 30000C
D. 300000C
9 Reaction of HNO, with very dilute Zinc and at low temperature gives
A. H2
B. NO
C. NO2
D. NH4
10 Structure of P4 is
A. Trigonal
B. Tetragonal
C. Hexagonal
D. Monoclinic

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