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

All the following decompose easily on heating to give oxygen except

Question # 2

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

Question # 3

Which of the following is lighter

Question # 4

Phosphine is not obtained by the reaction when

Question # 5

The number of electron that are paired in oxygen molecule are

Question # 6

BiCl3on hydrolysis forms a white precipitate of

Question # 7

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 8

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

Question # 9

Lime, calcium oxide, is used in agriculture for

Question # 10

Sodium is never found free in nature because of its

Question # 11

NaHCO3is commonly called

Question # 12

Which is litharge or massicot?

Question # 13

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 14

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

Question # 15

Marble is chemically

Question # 16

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

Question # 17

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

Question # 18

Crystalline form of sulphur stable at room temperature is

Question # 19

Which of the element is not alkali metal

Question # 20

What is chrome yellow?

Question # 21

The chemical formula of chile salt peter is

Question # 22

Which has soapy touch?

Question # 23

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

Question # 24

Baking powder has which one of the following formula

Question # 25

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

Question # 26

Aluminium oxide is:

Question # 27

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 28

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

Question # 29

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

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 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 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur
3 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour
4 Carbonates of alkali metals dissolves freely in water to form
A. Acidic solutions
B. Neutral solution
C. Alkaline solution
D. None of these
5 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl
6 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
7 The element which has a simple cubic lattice in solid state is
A. Se
B. Te
C. Po
D. None of these
8 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
9 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
10 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon

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