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

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

Question # 2

Which of the following compounds is explosive in nature?

Question # 3

Which of the following salt is soluble in water

Question # 4

Sulphuric acid has great affinity for water because

Question # 5

Gypsum is a common mineral of

Question # 6

Corrundam is ore of:

Question # 7

Phosphine is not obtained by the reaction when

Question # 8

Chief ore of aluminium is:

Question # 9

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

Question # 10

Which of the following is the hardest metal among following

Question # 11

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 12

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

Question # 13

Which of the following sulphates has the highest solubility in water

Question # 14

The number of electron that are paired in oxygen molecule are

Question # 15

Solvay process is used in the manufacture of

Question # 16

Which of the following element is most reactive

Question # 17

Which of the following is acidic?

Question # 18

Aluminium oxide is:

Question # 19

Which property is not present in Al?

Question # 20

Orthophosphoric acid is

Question # 21

The chemical formula of Epson salt is

Question # 22

Sodium forms largely

Question # 23

Alkaline earth metals are usually

Question # 24

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

Question # 25

Lithium reacts with air to form

Question # 26

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 27

The metal with highest electrical resistance at room temperature is

Question # 28

Plaster of pares is obtained by heating

Question # 29

The most acidic of the following compounds is

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following form normal oxide
A. K
B. Li
C. Na
D. None
2 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
3 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
4 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1
5 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
6 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
7 Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is
8 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
9 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
10 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black

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