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

Heavy water is obtained by

Question # 2

A compound used as eye wash:

Question # 3

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

Question # 4

Which on of the following compounds does not exist?

Question # 5

The element caesium bears resemblance with

Question # 6

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

Question # 7

Hypo is used in photography for

Question # 8

Pb has inert pair of electrons:

Question # 9

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

Question # 10

Borax is hydrated:

Question # 11

Which is used in navigational equipments?

Question # 12

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

Question # 13

Orthophosphoric acid is

Question # 14

The chemical formula of chile salt peter is

Question # 15

Which of the following is not the reactions of lithium

Question # 16

Solvay process is used in the manufacture of

Question # 17

The chemical formula of gypsum is

Question # 18

Baking powder has which one of the following formula

Question # 19

Down's cell is used to prepare

Question # 20

When SO2is passed through acidified K2Cr2O7solution

Question # 21

Sodium forms largely

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 is an essential constituent of chlorophyll

Question # 25

Which of the element is not alkali metal

Question # 26

Which of the following fluorides does not exists?

Question # 27

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

Question # 28

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

Question # 29

Hybridized in oxygen is:

Question # 30

Al is the most element in earth crust:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
3 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
4 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon
5 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour
6 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
7 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
8 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
9 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
10 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these

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