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

Which of the following element is most reactive

Question # 2

Orthophosphoric acid is

Question # 3

______ reacts with alkalis to give hydrogen

Question # 4

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 5

Aluminium oxide is:

Question # 6

Alkali metals react violently with halogens to form

Question # 7

Permonosulphuric acid is known as

Question # 8

Where lime is not used

Question # 9

Hypo is used in photography for

Question # 10

Oleum is

Question # 11

The acid which has a peroxy linkage is

Question # 12

Which on of the following compounds does not exist?

Question # 13

Down's cell is used to prepare

Question # 14

Marble is chemically

Question # 15

Which of the following oxides is peroxide?

Question # 16

Identify the incorrect statement with respect to ozone

Question # 17

Gypsum is a common mineral of

Question # 18

______ gives peroxide

Question # 19

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

Question # 20

Chief ore of aluminium is:

Question # 21

Sodium is never found free in nature because of its

Question # 22

Gypsum is applied to the soil to provide calcium and

Question # 23

Alkaline earth metals posses two electrons in their outermost

Question # 24

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

Question # 25

Dipole moment of CO molecule is:

Question # 26

Crystalline form of sulphur stable at room temperature is

Question # 27

Which element has highest oxidation potential

Question # 28

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

Question # 29

The most acidic of the following compounds is

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following sulphates has the highest solubility in water
A. BaSO4
B. CaSO4
C. MgSO4
D. BeSO4
2 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
3 The oxidation number of each element of group ll-A is
A. 0
B. +1
C. +2
D. -1
4 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
5 Which of all following compound is not possible
6 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
7 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black
8 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
9 Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?
A. Nitric oxide
B. Nitrous oxide
C. Nitrogen dioxide
D. Dinitrogen tetraoxide
10 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic

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