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 is not the form of silica?

Question # 2

______ gives peroxide

Question # 3

Which of the following is acidic?

Question # 4

HNO2acts as an/a

Question # 5

Which of the following phosphorus is most reactive?

Question # 6

Chile saltpetre has the chemical formula

Question # 7

Which of the following sulphates has the highest solubility in water

Question # 8

Calcium carbide reacts with water to produce

Question # 9

Which of the following element is most reactive

Question # 10

Alkaline earth metals are usually

Question # 11

Electron affinity of sulphur is

Question # 12

The electrolytic cell used for the production of metallic sodium is known as

Question # 13

Copper oxide is dedected by borax bead test with colour:

Question # 14

The alkaline earth elements have in their s-orbital

Question # 15

Ozone is not

Question # 16

Marble is chemically

Question # 17

Sodium hexametaphophate is known as

Question # 18

Phosphorus pentoxide finds use as

Question # 19

______ reacts with alkalis to give hydrogen

Question # 20

The silver bromide in hypo (Na2S2O3) solution is

Question # 21

Which carbonate of alkali metals is insoluble in water

Question # 22

The structure of white phosphorus is

Question # 23

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

Question # 24

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

Question # 25

Lime, calcium oxide, is used in agriculture for

Question # 26

Which element among the following belongs to Group IV-A of the periodic table?

Question # 27

Which of all following compound is not possible

Question # 28

Carbonates of alkali metals dissolves freely in water to form

Question # 29

Which of the element is not an alkaline earth metal

Question # 30

Which of the following are electropositive in nature

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because
A. Sulphur is present in the mixture as impurity
B. IV group radicals are precipitated as sulphides
C. Of the oxidation of H2S gas by some acid radicals
D. III group radicals are precipitated as hydroxides
2 Which of the following form normal oxide
A. K
B. Li
C. Na
D. None
3 Which of the following is lighter
A. Li
B. k
C. Na
D. Ca
4 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
5 Which is an essential constituent of chlorophyll
A. Be
B. Fe
C. Mg
D. Ca
6 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
7 All the elements of oxygen family are
A. Non metals
B. Metalloids
C. Radioactive
D. Polymorphic
8 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
9 All the following decompose easily on heating to give oxygen except
A. Lead nitrate
B. Potassium chlorate
C. Mercuric oxide
D. Manganese dioxide
10 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes

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