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

Which of the following sulphates is not soluble in water

Question # 2

Sulphuric acid has great affinity for water because

Question # 3

Which is not the form of silica?

Question # 4

Solvay process is used in the manufacture of

Question # 5

BiCl3on hydrolysis forms a white precipitate of

Question # 6

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

Question # 7

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 8

Ozone is not

Question # 9

Which is used to remove air bubbles form metals?

Question # 10

Which on of the following compounds does not exist?

Question # 11

HNO2acts as an/a

Question # 12

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

Question # 13

Which element form group 15 gives most basic compound with hydrogen?

Question # 14

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 15

Electron affinity of sulphur is

Question # 16

The formula of lime stone is

Question # 17

The metal with highest electrical resistance at room temperature is

Question # 18

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 19

Which of the following is a tetrabasic acid?

Question # 20

When SO2is passed through acidified K2Cr2O7solution

Question # 21

The number of electron that are paired in oxygen molecule are

Question # 22

White P when boiled with strong solution of caustic soda produces

Question # 23

Commercial common salt becomes slight damp on storing because

Question # 24

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

Question # 25

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

Question # 26

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 27

Dipole moment of CO molecule is:

Question # 28

Marble is chemically

Question # 29

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

Question # 30

Which of the following sulphates has the highest solubility in water

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
2 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
3 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?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
4 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
5 Alkaline earth metals posses two electrons in their outermost
A. F-orbital
B. D-orbital
C. S-orbital
D. P-orbital
6 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
7 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
8 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
9 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon
10 Which of the following fluorides does not exists?
A. NF5
B. PF5
C. AsF5
D. SbF5

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