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

Sodium should be stored in

Question # 2

What is going to replace the petroleum?

Question # 3

Which is used to remove air bubbles form metals?

Question # 4

Polyanion formation is maximum in

Question # 5

Red P can be obtained form white P by

Question # 6

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 7

Dipole moment of CO molecule is:

Question # 8

The formula of lime stone is

Question # 9

The acid which has a peroxy linkage is

Question # 10

The alkali metals form

Question # 11

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

Question # 12

Sodium forms largely

Question # 13

Crystalline form of sulphur stable at room temperature is

Question # 14

Heavy water is obtained by

Question # 15

Plaster of pares is obtained by heating

Question # 16

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

Question # 17

Lime, calcium oxide, is used in agriculture for

Question # 18

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 # 19

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 20

Which of the following element is most reactive

Question # 21

Which of the following sulphates is not soluble in water

Question # 22

All the following decompose easily on heating to give oxygen except

Question # 23

Electron affinity of sulphur is

Question # 24

White P when boiled with strong solution of caustic soda produces

Question # 25

Phosphide ion has the electronic structure similar to that of

Question # 26

Which is not the form of silica?

Question # 27

The alkaline earth elements have in their s-orbital

Question # 28

Which salt is used for preserving food

Question # 29

When ammonia is heated with cupric oxide, a molecule of ammonia will

Question # 30

Chief ore of aluminium is:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which one of the following properties is not correct for ozone?
A. It oxidizes lead sulphides
B. It oxidizes potassium iodide
C. It oxidizes mercury
D. It cannot act as a bleaching agent
2 White phosphorus is
A. A mono atomic gas
B. P4, a tetrahedral solid
C. P8, a crown
D. A linear diatomic molecule
3 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
4 Electron affinity of sulphur is
A. More than O and Se
B. More than O but less than Se
C. Less than O but more than Se
D. Equal to O and Se
5 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
6 Baking powder has which one of the following formula
A. Na2CO3
B. Na2SO4
C. NaHCO3
D. K2CO3
7 Calcium carbide reacts with water to produce
A. Acetylene
B. Methane
C. Ethylene
D. Ethane
8 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
9 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
10 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic

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