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 one of the following properties is not correct for ozone?

Question # 2

Sulphuric acid has great affinity for water because

Question # 3

Lithium reacts with air to form

Question # 4

All the following decompose easily on heating to give oxygen except

Question # 5

Marble is chemically

Question # 6

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

Question # 7

Which of the following equations represents the action of heat on NaHCO3

Question # 8

Which of the following sulphates has the highest solubility in water

Question # 9

The chemical formula of Epson salt is

Question # 10

Which one of the following pentafluorides cannot be formed?

Question # 11

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

Question # 12

The acid used in lead storage cells is

Question # 13

Which property is not present in Al?

Question # 14

Phosphine is not obtained by the reaction when

Question # 15

Plaster of pares is obtained by heating

Question # 16

Chief ore of aluminium is:

Question # 17

Carbonates of alkali metals dissolves freely in water to form

Question # 18

Which is used to remove air bubbles form metals?

Question # 19

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

Question # 20

Which shows maximum catenation property?

Question # 21

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

Question # 22

______ gives peroxide

Question # 23

The element caesium bears resemblance with

Question # 24

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

Question # 25

Which element has highest oxidation potential

Question # 26

Sodium should be stored in

Question # 27

Aluminium oxide is:

Question # 28

Which of the following element is most reactive

Question # 29

All the elements of oxygen family are

Question # 30

White P when boiled with strong solution of caustic soda produces

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
2 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon
3 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water
4 All the elements of oxygen family are
A. Non metals
B. Metalloids
C. Radioactive
D. Polymorphic
5 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
6 Gypsum is a common mineral of
A. Magnesium
B. Strontium
C. Calcium
D. Barium
7 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
8 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur
9 Which of the following equations represents the action of heat on NaHCO3
10 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these

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