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

______ gives peroxide

Question # 2

Which carbonate of alkali metals is insoluble in water

Question # 3

Which metal is used in the thermit process because of its activity?

Question # 4

Which of the following is the hardest metal among following

Question # 5

Boric acid cannot be used:

Question # 6

When SO2is passed through acidified K2Cr2O7solution

Question # 7

Gypsum is a common mineral of

Question # 8

NaHCO3is prepared by

Question # 9

The oxidation number of each element of group ll-A is

Question # 10

What is chrome yellow?

Question # 11

Which of the following form normal oxide

Question # 12

Sodium forms largely

Question # 13

What is going to replace the petroleum?

Question # 14

Which is an essential constituent of chlorophyll

Question # 15

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

Question # 16

The element which has a simple cubic lattice in solid state is

Question # 17

Which of the following is acidic?

Question # 18

Which of the following are electropositive in nature

Question # 19

Which of the following sulphates has the highest solubility in water

Question # 20

Which of the following has highest dipole moment?

Question # 21

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

Question # 22

The chemical formula of Epson salt is

Question # 23

Which salt is used for the treatment of hyperacidity in stomach

Question # 24

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

Question # 25

Which element forms an iron with charge 3+?

Question # 26

Basicity of orthoposphoric acid is

Question # 27

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 28

Which of the following is a tetrabasic acid?

Question # 29

The metal with highest electrical resistance at room temperature is

Question # 30

Which of all following compound is not possible

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 When SO2is passed through acidified K2Cr2O7solution
A. The solution turns blue
B. The solution is decolourised
C. SO2is reduced
D. Green Cr2(SO4)3is formed
2 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
3 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
4 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
5 Which one of the following properties is not correct for ozone?
A. It oxidizes lead sulphides
B. It oxidizes potassium iodide
C. It oxidizes mercury
D. It cannot act as a bleaching agent
6 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3
7 Lime, calcium oxide, is used in agriculture for
A. Adding ca metal in soil
B. Making soil acidic
C. Neutralizing acidic soil
D. Adding oxygen to soil
8 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
9 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
10 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water

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