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

Permonosulphuric acid is known as

Question # 2

Solvay process is used in the manufacture of

Question # 3

Crystalline form of sulphur stable at room temperature is

Question # 4

Tincal is a mineral of:

Question # 5

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

Question # 6

Alkaline earth metals posses two electrons in their outermost

Question # 7

Which is used to remove air bubbles form metals?

Question # 8

Sodium hexametaphophate is known as

Question # 9

Carbonates of alkali metals dissolves freely in water to form

Question # 10

Phosphide ion has the electronic structure similar to that of

Question # 11

Which is an essential constituent of chlorophyll

Question # 12

The chemical formula of chile salt peter is

Question # 13

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

Question # 14

Al is the most element in earth crust:

Question # 15

Sodium forms largely

Question # 16

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

Question # 17

Phosphorus pentoxide finds use as

Question # 18

Which of the following is a tetrabasic acid?

Question # 19

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 20

Which of the following compounds is explosive in nature?

Question # 21

Baking powder has which one of the following formula

Question # 22

Which of the following are electropositive in nature

Question # 23

Which on of the following compounds does not exist?

Question # 24

NaHCO3is prepared by

Question # 25

Which of all following compound is not possible

Question # 26

Calcium carbide reacts with water to produce

Question # 27

Boric acid cannot be used:

Question # 28

Which element has highest oxidation potential

Question # 29

______ gives peroxide

Question # 30

Marble is chemically

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
3 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
4 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
5 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
6 Gypsum is applied to the soil to provide calcium and
A. Oxygen
B. Nitrogen
C. Phosphorous
D. Sulphur
7 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil
8 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
9 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
10 Corrundam is ore of:
A. Li
B. Be
C. B
D. Al

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