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

The chemical formula of Trona is

Question # 2

Which is an essential constituent of chlorophyll

Question # 3

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 4

Which of the following fluorides does not exists?

Question # 5

Sodium hexametaphophate is known as

Question # 6

The most acidic of the following compounds is

Question # 7

Chief ore of aluminium is:

Question # 8

Which of the following phosphorus is most reactive?

Question # 9

Alkaline earth metals posses two electrons in their outermost

Question # 10

What causes nitrogen to be chemically inert?

Question # 11

Lithium reacts with air to form

Question # 12

White P when boiled with strong solution of caustic soda produces

Question # 13

A compound used as eye wash:

Question # 14

Which of the following form normal oxide

Question # 15

Which will have the maximum value of heat of hydration

Question # 16

Boric acid cannot be used:

Question # 17

Which element forms an iron with charge 3+?

Question # 18

The alkali metals form

Question # 19

The formula of lime stone is

Question # 20

Hypo is used in photography for

Question # 21

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

Question # 22

Which of the following equations represents the action of heat on NaHCO3

Question # 23

Gypsum is a common mineral of

Question # 24

Which element among the following belongs to Group IV-A of the periodic table?

Question # 25

Carbonates of alkali metals dissolves freely in water to form

Question # 26

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

Question # 27

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

Question # 28

Which one of the following pentafluorides cannot be formed?

Question # 29

Dipole moment of CO molecule is:

Question # 30

Which of the following is the hardest metal among following

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
2 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
3 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
4 Each of the following is true of white and red phosphours except that they
A. Are both soluble in CS2
B. Can be oxidized by heating in air
C. Consist of the same kind of atoms
D. Can be converted into one another
5 Which metal of Group-II A of the periodic Table, will form the least ionic chloride
A. Be
B. Mg
C. Ca
D. Sr
6 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
7 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
8 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
9 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
10 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these

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