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 element form group 15 gives most basic compound with hydrogen?

Question # 2

Lime, calcium oxide, is used in agriculture for

Question # 3

Phosphide ion has the electronic structure similar to that of

Question # 4

The oxide of beryllium is

Question # 5

Which of the following phosphorus is most reactive?

Question # 6

A compound used as eye wash:

Question # 7

Sodium forms largely

Question # 8

Copper oxide is dedected by borax bead test with colour:

Question # 9

Sodium hexametaphophate is known as

Question # 10

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 # 11

NaHCO3is commonly called

Question # 12

Silicon atom is hybridized:

Question # 13

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

Question # 14

The alkaline earth elements have in their s-orbital

Question # 15

Which of the following has highest dipole moment?

Question # 16

P2O5is heated with water to give

Question # 17

Gypsum is applied to the soil to provide calcium and

Question # 18

The chemical formula of magnesite is

Question # 19

Which is not the form of silica?

Question # 20

Oleum is

Question # 21

______ reacts with alkalis to give hydrogen

Question # 22

Orthophosphoric acid is

Question # 23

Marble is chemically

Question # 24

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

Question # 25

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 26

The structure of white phosphorus is

Question # 27

NaHCO3is prepared by

Question # 28

Which of the element is not an alkaline earth metal

Question # 29

Pb has inert pair of electrons:

Question # 30

Which of the following element is most reactive

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Solvay process is used in the manufacture of
A. Na2CO3
B. NaHCO3
C. CaCl2
D. All
2 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
3 Pb has inert pair of electrons:
A. One
B. Two
C. Three
D. Four
4 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
5 Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is
6 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
7 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil
8 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
9 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
10 Alkali metals react violently with halogens to form
A. Hydrides
B. Halides
C. Anyhydrides
D. None of these

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