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

00:00
Question # 1

Identify the incorrect statement with respect to ozone

Question # 2

Red P can be obtained form white P by

Question # 3

Borax is hydrated:

Question # 4

The oxide of beryllium is

Question # 5

______ reacts with alkalis to give hydrogen

Question # 6

Which shows maximum catenation property?

Question # 7

The chemical formula of Trona is

Question # 8

Silicon atom is hybridized:

Question # 9

Carbonates of alkali metals dissolves freely in water to form

Question # 10

Which element has highest oxidation potential

Question # 11

Which of the following phosphorus is most reactive?

Question # 12

Density of aluminium is (g cm-3):

Question # 13

Which of the following are electropositive in nature

Question # 14

Permonosulphuric acid is known as

Question # 15

What is going to replace the petroleum?

Question # 16

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 17

All the following decompose easily on heating to give oxygen except

Question # 18

The chemical formula of magnesite is

Question # 19

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

Question # 20

The alkali metals form

Question # 21

Copper oxide is dedected by borax bead test with colour:

Question # 22

Oleum is

Question # 23

Boric acid cannot be used:

Question # 24

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

Question # 25

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

Question # 26

Which of the following is not the reactions of lithium

Question # 27

Lime, calcium oxide, is used in agriculture for

Question # 28

Which of the element is not an alkaline earth metal

Question # 29

The chemical formula of Epson salt is

Question # 30

Aluminium oxide is:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
2 Which is used in navigational equipments?
A. B
B. Be
C. Mg
D. Al
3 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
4 Baking powder has which one of the following formula
A. Na2CO3
B. Na2SO4
C. NaHCO3
D. K2CO3
5 Which of the following is not the reactions of lithium
6 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
7 The oxidation number of each element of group ll-A is
A. 0
B. +1
C. +2
D. -1
8 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
9 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black
10 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S

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