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

Sulphuric acid reacts with PCl5to give

Question # 2

Which on of the following compounds does not exist?

Question # 3

Which of the following salt is used as purgative

Question # 4

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 5

Phosphorus pentoxide finds use as

Question # 6

All the elements of oxygen family are

Question # 7

Which of the following salt is soluble in water

Question # 8

The silver bromide in hypo (Na2S2O3) solution is

Question # 9

Sodium should be stored in

Question # 10

The structure of white phosphorus is

Question # 11

Commercial common salt becomes slight damp on storing because

Question # 12

The alkali metals form

Question # 13

Al is the most element in earth crust:

Question # 14

Density of aluminium is (g cm-3):

Question # 15

Which has soapy touch?

Question # 16

Which one of the following is not an alkali metal

Question # 17

What is chrome yellow?

Question # 18

Calcium carbide reacts with water to produce

Question # 19

Marble is chemically

Question # 20

______ gives peroxide

Question # 21

The chemical formula of Epson salt is

Question # 22

Which salt is used for preserving food

Question # 23

In the earth crust sodium is

Question # 24

Which of the following oxides is peroxide?

Question # 25

Which one of the following properties is not correct for ozone?

Question # 26

Which shows maximum catenation property?

Question # 27

The maximum number of electrons in the outermost shall of s-black elements is

Question # 28

The number of electron that are paired in oxygen molecule are

Question # 29

Sodium forms largely

Question # 30

Hypo is used in photography for

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Which of the following elements is most metallic?
A. P
B. As
C. Sb
D. Bi
3 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
4 Hybridized in carbon is:
A. sp
B. sp2
C. sp3
D. d2sp
5 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
6 The alkali metals form
A. Ionic bond
B. Covalent bond
C. Co-ordinate bond
D. H-bond
7 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
8 White phosphorus is
A. A mono atomic gas
B. P4, a tetrahedral solid
C. P8, a crown
D. A linear diatomic molecule
9 BiCl3on hydrolysis forms a white precipitate of
A. Bismuthio acid
B. Bismuth oxychloride
C. Bismuth pentachloride
D. Bismuth hydroxide
10 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals

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