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

Copper oxide is dedected by borax bead test with colour:

Question # 2

Chief ore of aluminium is:

Question # 3

Electron affinity of sulphur is

Question # 4

White phosphorus is

Question # 5

Hypo is used in photography for

Question # 6

The structure of white phosphorus is

Question # 7

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

Question # 8

Which of the following are electropositive in nature

Question # 9

Which of the following is formed by the action of water on sodium peroxide?

Question # 10

Which on of the following compounds does not exist?

Question # 11

Alkaline earth metals posses two electrons in their outermost

Question # 12

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 13

Which carbonate of alkali metals is insoluble in water

Question # 14

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

Question # 15

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 16

When SO2is passed through acidified K2Cr2O7solution

Question # 17

Carbonates of alkali metals dissolves freely in water to form

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

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

Question # 20

The alkali metals form

Question # 21

Plaster of pares is obtained by heating

Question # 22

Which of the following compounds is explosive in nature?

Question # 23

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

Question # 24

Chemical composition of colemnite is:

Question # 25

Which of the following is not the reactions of lithium

Question # 26

Bond angle is minimum for

Question # 27

The maximum number of electrons in the outermost shall of s-black elements is

Question # 28

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

Question # 29

Which will have the maximum value of heat of hydration

Question # 30

Aluminium oxide is:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
3 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
4 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
5 Chief ore of aluminium is:
A. Na3AIF6
B. Al2O3.2H2O
C. Al2O3
D. Al2O3 .H2O
6 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
7 Gypsum is applied to the soil to provide calcium and
A. Oxygen
B. Nitrogen
C. Phosphorous
D. Sulphur
8 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
9 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
10 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb

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