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

What causes nitrogen to be chemically inert?

Question # 2

What is the formula of asbestos?

Question # 3

The chemical formula of chile salt peter is

Question # 4

Which salt is used for the treatment of hyperacidity in stomach

Question # 5

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

Question # 6

Which of the following is lighter

Question # 7

Calcium carbide reacts with water to produce

Question # 8

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

Question # 9

The alkali metals form

Question # 10

Alkali metals react violently with halogens to form

Question # 11

The chemical formula of gypsum is

Question # 12

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 # 13

The most acidic of the following compounds is

Question # 14

The acid which has a peroxy linkage is

Question # 15

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 16

A compound used as eye wash:

Question # 17

Commercial common salt becomes slight damp on storing because

Question # 18

Carbonates of alkali metals dissolves freely in water to form

Question # 19

Which on of the following compounds does not exist?

Question # 20

Borax is hydrated:

Question # 21

LiOH ______ soluble than NaOH

Question # 22

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

Question # 23

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

Question # 24

Which is litharge or massicot?

Question # 25

Hypo is used in photography for

Question # 26

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

Question # 27

When ammonia is heated with cupric oxide, a molecule of ammonia will

Question # 28

The formula of lime stone is

Question # 29

Phosphide ion has the electronic structure similar to that of

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 Sodium hexametaphophate is known as
A. Calgon
B. Permutite
C. Natalite
D. Nitrolim
2 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
3 Which of the following elements is not present abundantly in earth's crust?
A. Silicon
B. Aluminium
C. Sodium
D. Oxygen
4 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
5 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
6 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
7 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
8 Some of the elements of a period show similar behavior with the elements of next group in next period this is called
A. Vertical relationship
B. Oblique relationship
C. Diagonal relationship
D. None
9 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
10 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron

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