ECAT Pre Engineering Chemistry Chapter 14 MCQ Test With Answer

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

In the earth crust sodium is

Question # 2

Which of the following is the hardest metal among following

Question # 3

Which of the following is not the reactions of lithium

Question # 4

BiCl3on hydrolysis forms a white precipitate of

Question # 5

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 6

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 7

Which one of the following is not an alkali metal

Question # 8

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

Question # 9

Which of the following element is most reactive

Question # 10

Which of the element is not alkali metal

Question # 11

Calcium carbide reacts with water to produce

Question # 12

Which one of the following elements occurs free in nature?

Question # 13

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 14

Which carbonate of alkali metals is insoluble in water

Question # 15

The chemical formula of Epson salt is

Question # 16

Which of the following has highest dipole moment?

Question # 17

Solvay process is used in the manufacture of

Question # 18

Which of the following is a tetrabasic acid?

Question # 19

Which of all following compound is not possible

Question # 20

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

Question # 21

The ore CaSO42H2O has the general name

Question # 22

Which on of the following compounds does not exist?

Question # 23

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 24

Lime, calcium oxide, is used in agriculture for

Question # 25

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

Question # 26

Which of the following compounds is explosive in nature?

Question # 27

Chief ore of aluminium is:

Question # 28

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

Question # 29

What causes nitrogen to be chemically inert?

Question # 30

______ is called milk of magnesia

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
2 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
3 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
4 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
5 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
6 Which is litharge or massicot?
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
7 Identify the incorrect statement with respect to ozone
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations
8 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above
9 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
10 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon

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