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

The most acidic of the following compounds is

Question # 2

In the earth crust sodium is

Question # 3

Phosphine is not obtained by the reaction when

Question # 4

LiOH ______ soluble than NaOH

Question # 5

The formula of lime stone is

Question # 6

When SO2is passed through acidified K2Cr2O7solution

Question # 7

White phosphorus is

Question # 8

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

Question # 9

Which of the following is a tetrabasic acid?

Question # 10

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

Question # 11

The chemical formula of gypsum is

Question # 12

Orthophosphoric acid is

Question # 13

Lithium reacts with air to form

Question # 14

Sodium forms largely

Question # 15

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

Question # 16

The metal with highest electrical resistance at room temperature is

Question # 17

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

Question # 18

Chief ore of aluminium is:

Question # 19

Each of the following is true of white and red phosphours except that they

Question # 20

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 21

Polyanion formation is maximum in

Question # 22

The alkaline earth elements have in their s-orbital

Question # 23

BiCl3on hydrolysis forms a white precipitate of

Question # 24

Pb has inert pair of electrons:

Question # 25

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

Question # 26

The acid used in lead storage cells is

Question # 27

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

Question # 28

Sulphuric acid reacts with PCl5to give

Question # 29

Which will have the maximum value of heat of hydration

Question # 30

Which of all following compound is not possible

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
2 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
3 Solvay process is used in the manufacture of
A. Na2CO3
B. NaHCO3
C. CaCl2
D. All
4 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
5 Baking powder has which one of the following formula
A. Na2CO3
B. Na2SO4
C. NaHCO3
D. K2CO3
6 Plaster of pares is obtained by heating
A. Gypsum
B. Epsom
C. Lime stone
D. Dolomite
7 Which of the following sulphates has the highest solubility in water
A. BaSO4
B. CaSO4
C. MgSO4
D. BeSO4
8 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
9 Which metal of Group-II A of the periodic Table, will form the least ionic chloride
A. Be
B. Mg
C. Ca
D. Sr
10 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4

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