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

White P when boiled with strong solution of caustic soda produces

Question # 2

Aluminium oxide is:

Question # 3

The chemical formula of magnesite is

Question # 4

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

Question # 5

Which salt is used for preserving food

Question # 6

When SO2is passed through acidified K2Cr2O7solution

Question # 7

All the elements of oxygen family are

Question # 8

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

Question # 9

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

Question # 10

Which of the following is not the reactions of lithium

Question # 11

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Question # 12

Which of the element is not alkali metal

Question # 13

Copper oxide is dedected by borax bead test with colour:

Question # 14

Which one of the following pentafluorides cannot be formed?

Question # 15

Electron affinity of sulphur is

Question # 16

The ore CaSO42H2O has the general name

Question # 17

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

Question # 18

The acid which has a peroxy linkage is

Question # 19

Alkaline earth metals posses two electrons in their outermost

Question # 20

Which salt is used for the treatment of hyperacidity in stomach

Question # 21

Ozone is not

Question # 22

Heavy water is obtained by

Question # 23

The chemical formula of chile salt peter is

Question # 24

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

Question # 25

Commercial common salt becomes slight damp on storing because

Question # 26

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 27

Which element forms an iron with charge 3+?

Question # 28

S-block elements consist of

Question # 29

Which shows maximum catenation property?

Question # 30

Which property is not present in Al?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Identify the incorrect statement with respect to ozone
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations
2 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
3 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these
4 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
5 Corrundam is ore of:
A. Li
B. Be
C. B
D. Al
6 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
7 Which on of the following compounds does not exist?
A. NCl5
B. AsF5
C. SbCl5
D. PF5
8 Which of the following is acidic?
A. SO3
B. N2O
C. BeO
D. HgO
9 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
10 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl

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