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

Chile saltpetre has the chemical formula

Question # 2

The alkali metals form

Question # 3

Which salt is used for preserving food

Question # 4

Al is the most element in earth crust:

Question # 5

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

Question # 6

Alkali metals react violently with halogens to form

Question # 7

All the following decompose easily on heating to give oxygen except

Question # 8

The ore CaSO42H2O has the general name

Question # 9

CaC2on hydrolysis form

Question # 10

Chief ore of aluminium is:

Question # 11

Polyanion formation is maximum in

Question # 12

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 13

The acid used in lead storage cells is

Question # 14

Which of the element is not an alkaline earth metal

Question # 15

Which one of the following is not an alkali metal

Question # 16

Alkaline earth metals are usually

Question # 17

In the earth crust sodium is

Question # 18

The chemical formula of gypsum is

Question # 19

Sulphuric acid has great affinity for water because

Question # 20

What is the formula of asbestos?

Question # 21

Borax is hydrated:

Question # 22

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 23

Red P can be obtained form white P by

Question # 24

The chemical formula of Trona is

Question # 25

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 26

S-block elements consist of

Question # 27

Which property is not present in Al?

Question # 28

The formula of lime stone is

Question # 29

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 # 30

Which of the following is the hardest metal among following

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which one of the following pentafluorides cannot be formed?
A. PF5
B. AsF5
C. SbF5
D. BiF5
2 Red P can be obtained form white P by
A. Heating it with a catalyst in an inert atmosphere
B. Distilling it in an inert atmosphere
C. Dissolving it in CS2and crysllizing
D. Melting it ad pouring the liquid into water
3 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
4 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
5 Density of aluminium is (g cm-3):
A. B
B. Al
C. Si
D. Ge
6 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
7 The alkali metals form
A. Ionic bond
B. Covalent bond
C. Co-ordinate bond
D. H-bond
8 As a fixing agent in photography, sodium thisoulphate is used for
A. Dissolving out unreacted silver bromide
B. Converting silver
C. Reducing solubility of AgBr
D. Preventing overdeveloping and fogging
9 Plaster of pares is obtained by heating
A. Gypsum
B. Epsom
C. Lime stone
D. Dolomite
10 Each of the following is true of white and red phosphours except that they
A. Are both soluble in CS2
B. Can be oxidized by heating in air
C. Consist of the same kind of atoms
D. Can be converted into one another

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