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

Which salt is used for the treatment of hyperacidity in stomach

Question # 2

Basicity of orthoposphoric acid is

Question # 3

Boric acid cannot be used:

Question # 4

Which of all following compound is not possible

Question # 5

Which metal is used in the thermit process because of its activity?

Question # 6

Which of the following is acidic?

Question # 7

The chemical formula of chile salt peter is

Question # 8

White phosphorus is

Question # 9

The oxide of beryllium is

Question # 10

Orthophosphoric acid is

Question # 11

Which shows maximum catenation property?

Question # 12

Plaster of pares is obtained by heating

Question # 13

Red P can be obtained form white P by

Question # 14

Which of the following oxides is peroxide?

Question # 15

As a fixing agent in photography, sodium thisoulphate is used for

Question # 16

Each of the following is true of white and red phosphours except that they

Question # 17

Which of the following elements is not present abundantly in earth's crust?

Question # 18

Bond angle is minimum for

Question # 19

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

Question # 20

Which of the following sulphates has the highest solubility in water

Question # 21

The acid which has a peroxy linkage is

Question # 22

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 23

Sulphuric acid has great affinity for water because

Question # 24

The oxidation number of each element of group ll-A is

Question # 25

Which of the following is not the reactions of lithium

Question # 26

Which is not the form of silica?

Question # 27

Calcium carbide reacts with water to produce

Question # 28

Aluminium oxide is:

Question # 29

Which of the following elements is most metallic?

Question # 30

All the elements of oxygen family are

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
2 Which is an essential constituent of chlorophyll
A. Be
B. Fe
C. Mg
D. Ca
3 Which of the element is not an alkaline earth metal
A. Beryllium
B. Strontium
C. Barium
D. Caesium
4 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
5 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
6 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
7 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
8 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
9 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
10 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al

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