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 oxides is peroxide?

Question # 2

______ reacts with alkalis to give hydrogen

Question # 3

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

Question # 4

Which is used in navigational equipments?

Question # 5

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

Question # 6

Solvay process is used in the manufacture of

Question # 7

Which of the following form normal oxide

Question # 8

Aluminium oxide is:

Question # 9

Chief ore of aluminium is:

Question # 10

Carbonates of alkali metals dissolves freely in water to form

Question # 11

Which of the following phosphorus is most reactive?

Question # 12

Which of the following element is most reactive

Question # 13

The number of electron that are paired in oxygen molecule are

Question # 14

A compound used as eye wash:

Question # 15

Commercial common salt becomes slight damp on storing because

Question # 16

Which on of the following compounds does not exist?

Question # 17

______ gives peroxide

Question # 18

Dipole moment of CO molecule is:

Question # 19

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?

Question # 20

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

Question # 21

Which salt is used for preserving food

Question # 22

White phosphorus is

Question # 23

Which is used to remove air bubbles form metals?

Question # 24

Which of the following elements is most metallic?

Question # 25

Phosphine is not obtained by the reaction when

Question # 26

Which is litharge or massicot?

Question # 27

The structure of white phosphorus is

Question # 28

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

Question # 29

What causes nitrogen to be chemically inert?

Question # 30

Which of the following fluorides does not exists?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
2 BiCl3on hydrolysis forms a white precipitate of
A. Bismuthio acid
B. Bismuth oxychloride
C. Bismuth pentachloride
D. Bismuth hydroxide
3 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
4 On alkali and alkaline earth metals down the group, there is decreasing trend in
A. m.p.
B. b.p.
C. Ionization potentiall
D. All of these
5 Which is not the form of silica?
A. Amethyst quatz
B. Rose quatz
C. Smoky
D. None of these
6 Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is
7 Which of the following sulphates has the highest solubility in water
A. BaSO4
B. CaSO4
C. MgSO4
D. BeSO4
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 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
10 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

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