ECAT Pre Engineering Chemistry Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

Try The MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

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ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

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Question # 1

Phosphide ion has the electronic structure similar to that of

Question # 2

Basicity of orthoposphoric acid is

Question # 3

In the earth crust sodium is

Question # 4

All the elements of oxygen family are

Question # 5

The most acidic of the following compounds is

Question # 6

What causes nitrogen to be chemically inert?

Question # 7

Lithium reacts with air to form

Question # 8

Which of the following fluorides does not exists?

Question # 9

HNO2acts as an/a

Question # 10

The alkaline earth elements have in their s-orbital

Question # 11

The chemical formula of chile salt peter is

Question # 12

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 13

Gypsum is applied to the soil to provide calcium and

Question # 14

Silicon atom is hybridized:

Question # 15

Which is used to remove air bubbles form metals?

Question # 16

All the following decompose easily on heating to give oxygen except

Question # 17

Which of all following compound is not possible

Question # 18

Sulphuric acid reacts with PCl5to give

Question # 19

Phosphorus pentoxide finds use as

Question # 20

The maximum number of electrons in the outermost shall of s-black elements is

Question # 21

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 22

Which one of the following does not belong to alkaline earth metals

Question # 23

What is chrome yellow?

Question # 24

Gypsum is a common mineral of

Question # 25

The structure of white phosphorus is

Question # 26

Which of the element is not an alkaline earth metal

Question # 27

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 28

P2O5is heated with water to give

Question # 29

The electrolytic cell used for the production of metallic sodium is known as

Question # 30

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Marble is chemically
A. CaCl2
B. CaCO3
C. Na2CO3
D. NaHCO3
2 The formula of lime stone is
A. CaCl2
B. MgCO3
C. Na2CO3
D. CaCO3
3 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
4 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
5 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
6 Which of the following is lighter
A. Li
B. k
C. Na
D. Ca
7 Solvay process is used in the manufacture of
A. Na2CO3
B. NaHCO3
C. CaCl2
D. All
8 The maximum number of electrons in the outermost shall of s-black elements is
A. One
B. Two
C. Three
D. Four
9 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
10 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black

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