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

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

Question # 2

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

Question # 3

Crystalline form of sulphur stable at room temperature is

Question # 4

Which of the following salt is used as purgative

Question # 5

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

Question # 6

Which of the following sulphates is not soluble in water

Question # 7

Ozone is not

Question # 8

The chemical formula of magnesite is

Question # 9

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

Question # 10

The chemical formula of Epson salt is

Question # 11

Which of the following are electropositive in nature

Question # 12

Silicon atom is hybridized:

Question # 13

Hybridized in oxygen is:

Question # 14

What is chrome yellow?

Question # 15

Lime, calcium oxide, is used in agriculture for

Question # 16

Phosphorus pentoxide finds use as

Question # 17

Al is the most element in earth crust:

Question # 18

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

Question # 19

The chemical formula of chile salt peter is

Question # 20

Orthophosphoric acid is

Question # 21

P2O5is heated with water to give

Question # 22

Which of the following salt is soluble in water

Question # 23

Alkaline earth metals are usually

Question # 24

Which of the following phosphorus is most reactive?

Question # 25

Marble is chemically

Question # 26

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

Question # 27

Solvay process is used in the manufacture of

Question # 28

Which has soapy touch?

Question # 29

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

Question # 30

Which shows maximum catenation property?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
2 Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?
A. Nitric oxide
B. Nitrous oxide
C. Nitrogen dioxide
D. Dinitrogen tetraoxide
3 As a fixing agent in photography, sodium thisoulphate is used for
A. Dissolving out unreacted silver bromide
B. Converting silver
C. Reducing solubility of AgBr
D. Preventing overdeveloping and fogging
4 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
5 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
6 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
7 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
8 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
9 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
10 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron

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