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 is used to remove air bubbles form metals?

Question # 2

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

Question # 3

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

Question # 4

Plaster of pares is obtained by heating

Question # 5

Baking powder has which one of the following formula

Question # 6

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

Question # 7

Lithium reacts with air to form

Question # 8

Polyanion formation is maximum in

Question # 9

Oleum is

Question # 10

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

Question # 11

Which salt is used for preserving food

Question # 12

Sulphuric acid reacts with PCl5to give

Question # 13

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

Question # 14

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 15

Borax is hydrated:

Question # 16

Which is litharge or massicot?

Question # 17

Which one of the following is not an alkali metal

Question # 18

Which element forms an iron with charge 3+?

Question # 19

The acid used in lead storage cells is

Question # 20

Which shows maximum catenation property?

Question # 21

Marble is chemically

Question # 22

Which of the following is a tetrabasic acid?

Question # 23

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

Question # 24

Which will have the maximum value of heat of hydration

Question # 25

Heavy water is obtained by

Question # 26

Which of the following phosphorus is most reactive?

Question # 27

Orthophosphoric acid is

Question # 28

Which is used in navigational equipments?

Question # 29

The formula of lime stone is

Question # 30

Which one of the following elements occurs free in nature?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 CaC2on hydrolysis form
A. CH4
B. C2H4
C. C2H2
D. C6H6
2 The acid which has a peroxy linkage is
A. Sulphurous acid
B. Pyrosulphuric acid
C. Dithionic acid
D. Caro's acid
3 All the elements of oxygen family are
A. Non metals
B. Metalloids
C. Radioactive
D. Polymorphic
4 Which of the following oxides is peroxide?
A. Na2O2
B. MnO2
C. BaO
D. SO2
5 Hybridized in oxygen is:
A. sp
B. sp2
C. sp3
D. dsp3
6 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
7 Phosphine is not obtained by the reaction when
A. White P is heated with NaOH
B. Red P is heated with NaOH
C. Ca2P2reacts with water
D. PH4l is boiled with water
8 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
9 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
10 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water

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