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 of the following sulphates is not soluble in water

Question # 2

Alkali metals react violently with halogens to form

Question # 3

All the following decompose easily on heating to give oxygen except

Question # 4

Which element forms an iron with charge 3+?

Question # 5

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

Question # 6

Chile saltpetre has the chemical formula

Question # 7

Which on of the following compounds does not exist?

Question # 8

Phosphide ion has the electronic structure similar to that of

Question # 9

Plaster of pares is obtained by heating

Question # 10

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 11

Al is the most element in earth crust:

Question # 12

What is chrome yellow?

Question # 13

Which salt is used for preserving food

Question # 14

A compound used as eye wash:

Question # 15

Which of the element is not an alkaline earth metal

Question # 16

Which of the following is formed by the action of water on sodium peroxide?

Question # 17

______ reacts with alkalis to give hydrogen

Question # 18

Which one of the following is not an alkali metal

Question # 19

The ore CaSO42H2O has the general name

Question # 20

NaHCO3is prepared by

Question # 21

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

Question # 22

Sodium forms largely

Question # 23

The electrolytic cell used for the production of metallic sodium is known as

Question # 24

Which of the following elements is not present abundantly in earth's crust?

Question # 25

The alkaline earth elements have in their s-orbital

Question # 26

Heavy water is obtained by

Question # 27

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

Question # 28

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

Question # 29

Which colour is imparted by sodium

Question # 30

Which property is not present in Al?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above
2 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
3 The acid which has a peroxy linkage is
A. Sulphurous acid
B. Pyrosulphuric acid
C. Dithionic acid
D. Caro's acid
4 Gypsum is applied to the soil to provide calcium and
A. Oxygen
B. Nitrogen
C. Phosphorous
D. Sulphur
5 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black
6 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb
7 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
8 A compound used as eye wash:
A. Borax
B. Boric acid
C. Metabolic acid
D. Pyroboric acid
9 Carbonates of alkali metals dissolves freely in water to form
A. Acidic solutions
B. Neutral solution
C. Alkaline solution
D. None of these
10 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4

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