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

The alkali metals form

Question # 2

Density of aluminium is (g cm-3):

Question # 3

Carbonates of alkali metals dissolves freely in water to form

Question # 4

Borax is hydrated:

Question # 5

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

Question # 6

What is the formula of asbestos?

Question # 7

Which of the following are electropositive in nature

Question # 8

Which of the element is not an alkaline earth metal

Question # 9

The structure of white phosphorus is

Question # 10

Phosphorus pentoxide finds use as

Question # 11

The acid used in lead storage cells is

Question # 12

Heavy water is obtained by

Question # 13

Which one of the following does not belong to alkaline earth metals

Question # 14

Which is used in navigational equipments?

Question # 15

Which element among the following belongs to Group IV-A of the periodic table?

Question # 16

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

Question # 17

Dipole moment of CO molecule is:

Question # 18

Boric acid cannot be used:

Question # 19

Chief ore of aluminium is:

Question # 20

Which of the following fluorides does not exists?

Question # 21

Polyanion formation is maximum in

Question # 22

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

Question # 23

NaHCO3is commonly called

Question # 24

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

Question # 25

White phosphorus is

Question # 26

Bond angle is minimum for

Question # 27

Chile saltpetre has the chemical formula

Question # 28

Down's cell is used to prepare

Question # 29

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

Question # 30

Lithium reacts with air to form

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Gypsum is applied to the soil to provide calcium and
A. Oxygen
B. Nitrogen
C. Phosphorous
D. Sulphur
2 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
3 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
4 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
5 The oxidation number of each element of group ll-A is
A. 0
B. +1
C. +2
D. -1
6 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
7 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
8 Commercial common salt becomes slight damp on storing because
A. Common salt is hygroscope
B. Common salt contains some impurity, which is hygroscopic
C. Salt in efflorescent
D. Salt is crystalline
9 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
10 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these

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