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 one of the following elements occurs free in nature?

Question # 2

Borax is hydrated:

Question # 3

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 4

Which salt is used for the treatment of hyperacidity in stomach

Question # 5

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

Question # 6

Which carbonate of alkali metals is insoluble in water

Question # 7

Which of the following is the hardest metal among following

Question # 8

Which of the following element is most reactive

Question # 9

Which of the following salt is soluble in water

Question # 10

HNO2acts as an/a

Question # 11

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

Question # 12

S-block elements consist of

Question # 13

Phosphine is not obtained by the reaction when

Question # 14

The chemical formula of chile salt peter is

Question # 15

Which one of the following pentafluorides cannot be formed?

Question # 16

The acid used in lead storage cells is

Question # 17

Which of all following compound is not possible

Question # 18

BiCl3on hydrolysis forms a white precipitate of

Question # 19

Marble is chemically

Question # 20

Which element forms an iron with charge 3+?

Question # 21

Which of the following salt is used as purgative

Question # 22

Which colour is imparted by sodium

Question # 23

The oxide of beryllium is

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

Commercial common salt becomes slight damp on storing because

Question # 28

______ reacts with alkalis to give hydrogen

Question # 29

Which of the following is formed by the action of water on sodium peroxide?

Question # 30

Which of the following fluorides does not exists?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3
2 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
3 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
4 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
5 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
6 What is the formula of asbestos?
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
7 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
8 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
9 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
10 Alkaline earth metals posses two electrons in their outermost
A. F-orbital
B. D-orbital
C. S-orbital
D. P-orbital

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