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

Which of the following phosphorus is most reactive?

Question # 2

Gypsum is applied to the soil to provide calcium and

Question # 3

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 4

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

Question # 5

The chemical formula of magnesite is

Question # 6

Hybridized in oxygen is:

Question # 7

The alkali metals form

Question # 8

Where lime is not used

Question # 9

All the elements of oxygen family are

Question # 10

Sodium hexametaphophate is known as

Question # 11

Which of the following has highest dipole moment?

Question # 12

What is chrome yellow?

Question # 13

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

Question # 14

Baking powder has which one of the following formula

Question # 15

The chemical formula of gypsum is

Question # 16

Which of the following is a tetrabasic acid?

Question # 17

Which of the following oxides is peroxide?

Question # 18

Which of the following is the hardest metal among following

Question # 19

CaC2on hydrolysis form

Question # 20

NaHCO3is commonly called

Question # 21

Identify the incorrect statement with respect to ozone

Question # 22

Which of the element is not an alkaline earth metal

Question # 23

Heavy water is obtained by

Question # 24

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

Question # 25

The structure of white phosphorus is

Question # 26

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 27

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

Question # 28

Which of the element is not alkali metal

Question # 29

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 30

Which of the following elements is not present abundantly in earth's crust?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following statement is not related to Solvay's process of Na2CO3
A. Cheap materials
B. Pure product
C. Continuous process
D. Harmful by-products
2 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
3 The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is
A. Hypophosphorus acid
B. Orthophosphorus acid
C. Pyrophosphorus acid
D. Metaphosphorus acid
4 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?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
5 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black
6 Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become
A. Stronger reducing agents
B. More ionic
C. More basic
D. More volatile
7 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
8 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
9 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
10 The ore CaSO42H2O has the general name
A. Gypsum
B. Dolomite
C. Calcite
D. Epsom salt

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