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

______ reacts with alkalis to give hydrogen

Question # 2

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

Question # 3

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

Question # 4

Corrundam is ore of:

Question # 5

Which one of the following properties is not correct for ozone?

Question # 6

Basicity of orthoposphoric acid is

Question # 7

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

Question # 8

Chemical composition of colemnite is:

Question # 9

As a fixing agent in photography, sodium thisoulphate is used for

Question # 10

NaHCO3is commonly called

Question # 11

Which salt is used for preserving food

Question # 12

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

Question # 13

What is going to replace the petroleum?

Question # 14

______ is used in breathing equipments for mountaineers and in space craft

Question # 15

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

Question # 16

Which is not the form of silica?

Question # 17

Lime, calcium oxide, is used in agriculture for

Question # 18

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?

Question # 19

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

Question # 20

The most acidic of the following compounds is

Question # 21

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

Question # 22

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 # 23

The acid which has a peroxy linkage is

Question # 24

Which of the following is the hardest metal among following

Question # 25

The chemical formula of Trona is

Question # 26

Silicon atom is hybridized:

Question # 27

Marble is chemically

Question # 28

Sulphuric acid has great affinity for water because

Question # 29

Plaster of pares is obtained by heating

Question # 30

Calcium carbide reacts with water to produce

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb
2 Which of the following element is most reactive
A. Li
B. Na
C. K
D. Cs
3 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
4 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
5 Which will have the maximum value of heat of hydration
A. Na+
B. Cs+
C. Ba+2
D. Mg+2
6 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic
7 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
8 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
9 Hybridized in carbon is:
A. sp
B. sp2
C. sp3
D. d2sp
10 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic

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