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

NaHCO3is commonly called

Question # 2

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

Question # 3

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

Question # 4

The element which has a simple cubic lattice in solid state is

Question # 5

Phosphide ion has the electronic structure similar to that of

Question # 6

What is the formula of asbestos?

Question # 7

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

Question # 8

Sodium is never found free in nature because of its

Question # 9

NaHCO3is prepared by

Question # 10

Which of the following is the hardest metal among following

Question # 11

Which of the following has highest dipole moment?

Question # 12

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

Question # 13

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

Question # 14

Copper oxide is dedected by borax bead test with colour:

Question # 15

Chile saltpetre has the chemical formula

Question # 16

Which one of the following elements occurs free in nature?

Question # 17

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

Question # 18

The acid which has a peroxy linkage is

Question # 19

Which of the following is not the reactions of lithium

Question # 20

Hypo is used in photography for

Question # 21

LiOH ______ soluble than NaOH

Question # 22

Which has soapy touch?

Question # 23

HNO2acts as an/a

Question # 24

The silver bromide in hypo (Na2S2O3) solution is

Question # 25

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 # 26

______ is called milk of magnesia

Question # 27

Which of the following are electropositive in nature

Question # 28

All the elements of oxygen family are

Question # 29

The chemical formula of Trona is

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
2 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
3 HNO2acts as an/a
A. Acid
B. Oxidizing agent
C. Reducing agent
D. All the three
4 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4
5 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
6 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
7 All the following decompose easily on heating to give oxygen except
A. Lead nitrate
B. Potassium chlorate
C. Mercuric oxide
D. Manganese dioxide
8 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
9 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon
10 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these

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