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

00:00
Question # 1

Al is the most element in earth crust:

Question # 2

The chemical formula of chile salt peter is

Question # 3

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

Question # 4

Which property is not present in Al?

Question # 5

Which metal is used in the thermit process because of its activity?

Question # 6

Orthophosphoric acid is

Question # 7

Pb has inert pair of electrons:

Question # 8

Which is an essential constituent of chlorophyll

Question # 9

Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?

Question # 10

Lithium reacts with air to form

Question # 11

Chief ore of aluminium is:

Question # 12

Which is used to remove air bubbles form metals?

Question # 13

Permonosulphuric acid is known as

Question # 14

Which is used in navigational equipments?

Question # 15

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

Question # 16

When SO2is passed through acidified K2Cr2O7solution

Question # 17

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 18

The alkaline earth elements have in their s-orbital

Question # 19

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

Question # 20

Identify the incorrect statement with respect to ozone

Question # 21

Which of all following compound is not possible

Question # 22

Sodium hexametaphophate is known as

Question # 23

Which of the following element is most reactive

Question # 24

Which of the following fluorides does not exists?

Question # 25

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

Question # 26

Gypsum is a common mineral of

Question # 27

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

Question # 28

Which of the following compounds is explosive in nature?

Question # 29

Alkali metals react violently with halogens to form

Question # 30

Which carbonate of alkali metals is insoluble in water

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
2 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
3 What is the formula of asbestos?
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
4 Density of aluminium is (g cm-3):
A. B
B. Al
C. Si
D. Ge
5 On alkali and alkaline earth metals down the group, there is decreasing trend in
A. m.p.
B. b.p.
C. Ionization potentiall
D. All of these
6 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
7 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
8 Which of the element is not alkali metal
A. Lithium
B. Rubidium
C. Francium
D. Magnesium
9 Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?
A. 1s, 2s2, 2p6, 3s2, 3p6, 4s2
B. 1s2 , 2s2 , 2p6 , 3s2, 3p1
C. 1s2, 2s2, 2p6
D. 1s2, 2s2, 2p6, 3s2, 3p3
10 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson

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