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 acid which has a peroxy linkage is

Question # 2

The oxide of beryllium is

Question # 3

Which of the following is a tetrabasic acid?

Question # 4

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

Question # 5

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

Question # 6

Alkaline earth metals posses two electrons in their outermost

Question # 7

Which of the following sulphates is not soluble in water

Question # 8

______ is used in breathing equipments for mountaineers and in space craft

Question # 9

Polyanion formation is maximum in

Question # 10

Chile saltpetre has the chemical formula

Question # 11

Copper oxide is dedected by borax bead test with colour:

Question # 12

The structure of white phosphorus is

Question # 13

Which colour is imparted by sodium

Question # 14

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 15

Which property is not present in Al?

Question # 16

Alkaline earth metals are usually

Question # 17

Marble is chemically

Question # 18

Aluminium oxide is:

Question # 19

Permonosulphuric acid is known as

Question # 20

Hybridized in oxygen is:

Question # 21

Which element forms an iron with charge 3+?

Question # 22

Alkali metals react violently with halogens to form

Question # 23

Which is used to remove air bubbles form metals?

Question # 24

Calcium carbide reacts with water to produce

Question # 25

Which of all following compound is not possible

Question # 26

The alkaline earth elements have in their s-orbital

Question # 27

NaHCO3is prepared by

Question # 28

Which salt is used for preserving food

Question # 29

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The alkali metals form
A. Ionic bond
B. Covalent bond
C. Co-ordinate bond
D. H-bond
2 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
3 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
4 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
A. Stronger reducing agents
B. More ionic
C. More basic
D. More volatile
5 The element which has a simple cubic lattice in solid state is
A. Se
B. Te
C. Po
D. None of these
6 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
7 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
8 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
9 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
10 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule

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