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

Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?

Question # 2

The chemical formula of magnesite is

Question # 3

HNO2acts as an/a

Question # 4

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

Question # 5

What causes nitrogen to be chemically inert?

Question # 6

The chemical formula of chile salt peter is

Question # 7

In the earth crust sodium is

Question # 8

______ gives peroxide

Question # 9

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

Question # 10

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

Question # 11

Boric acid cannot be used:

Question # 12

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

Question # 13

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 14

Which of the following is not the reactions of lithium

Question # 15

Which of the following oxides is peroxide?

Question # 16

Which of the following salt is used as purgative

Question # 17

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 18

Basicity of orthoposphoric acid is

Question # 19

Which salt is used for preserving food

Question # 20

Which of the element is not an alkaline earth metal

Question # 21

Which of the following has highest dipole moment?

Question # 22

Permonosulphuric acid is known as

Question # 23

Which of the following element is most reactive

Question # 24

Chief ore of aluminium is:

Question # 25

Sodium should be stored in

Question # 26

Lime, calcium oxide, is used in agriculture for

Question # 27

LiOH ______ soluble than NaOH

Question # 28

Which of the following is lighter

Question # 29

The alkaline earth elements have in their s-orbital

Question # 30

Which of the following form normal oxide

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
2 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
3 Which of the following oxides is peroxide?
A. Na2O2
B. MnO2
C. BaO
D. SO2
4 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
5 Tincal is a mineral of:
A. Al
B. B
C. Si
D. C
6 The maximum number of electrons in the outermost shall of s-black elements is
A. One
B. Two
C. Three
D. Four
7 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour
8 Sodium hexametaphophate is known as
A. Calgon
B. Permutite
C. Natalite
D. Nitrolim
9 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
10 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al

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