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

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

Question # 2

Which is used to remove air bubbles form metals?

Question # 3

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 4

Red P can be obtained form white P by

Question # 5

Al is the most element in earth crust:

Question # 6

The structure of white phosphorus is

Question # 7

Commercial common salt becomes slight damp on storing because

Question # 8

A compound used as eye wash:

Question # 9

NaHCO3is commonly called

Question # 10

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

Question # 11

The acid which has a peroxy linkage is

Question # 12

The chemical formula of Epson salt is

Question # 13

Which is an essential constituent of chlorophyll

Question # 14

Which of the following element is most reactive

Question # 15

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

Question # 16

Aluminium oxide is:

Question # 17

The most acidic of the following compounds is

Question # 18

The chemical formula of chile salt peter is

Question # 19

Where lime is not used

Question # 20

Which colour is imparted by sodium

Question # 21

Which of the following sulphates is not soluble in water

Question # 22

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 23

Tincal is a mineral of:

Question # 24

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

Question # 25

Hybridized in carbon is:

Question # 26

The alkaline earth elements have in their s-orbital

Question # 27

What is the formula of asbestos?

Question # 28

Which of the following salt is used as purgative

Question # 29

Ozone is not

Question # 30

The chemical formula of gypsum is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which one of the following is not an alkali metal
A. Francium
B. Caesium
C. Rubidium
D. Radium
2 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
3 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon
4 Which of the following oxides is peroxide?
A. Na2O2
B. MnO2
C. BaO
D. SO2
5 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
6 The maximum number of electrons in the outermost shall of s-black elements is
A. One
B. Two
C. Three
D. Four
7 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
8 The ore CaSO42H2O has the general name
A. Gypsum
B. Dolomite
C. Calcite
D. Epsom salt
9 Which is litharge or massicot?
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
10 Which of the following is not the reactions of lithium

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