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

All the following decompose easily on heating to give oxygen except

Question # 2

Which of the following sulphates is not soluble in water

Question # 3

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

Question # 4

Down's cell is used to prepare

Question # 5

Oleum is

Question # 6

The most acidic of the following compounds is

Question # 7

BiCl3on hydrolysis forms a white precipitate of

Question # 8

Which one of the following elements occurs free in nature?

Question # 9

The element caesium bears resemblance with

Question # 10

Which of the following salt is used as purgative

Question # 11

The acid which has a peroxy linkage is

Question # 12

Alkali metals react violently with halogens to form

Question # 13

The chemical formula of chile salt peter is

Question # 14

Hypo is used in photography for

Question # 15

What is the formula of asbestos?

Question # 16

Phosphine is not obtained by the reaction when

Question # 17

______ gives peroxide

Question # 18

Gypsum is applied to the soil to provide calcium and

Question # 19

Orthophosphoric acid is

Question # 20

Pb has inert pair of electrons:

Question # 21

Each of the following is true of white and red phosphours except that they

Question # 22

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

Question # 23

Alkaline earth metals are usually

Question # 24

The formula of lime stone is

Question # 25

Which element has highest oxidation potential

Question # 26

Which of the following is the hardest metal among following

Question # 27

The chemical formula of gypsum is

Question # 28

Aluminium oxide is:

Question # 29

Which carbonate of alkali metals is insoluble in water

Question # 30

Calcium carbide reacts with water to produce

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Baking powder has which one of the following formula
A. Na2CO3
B. Na2SO4
C. NaHCO3
D. K2CO3
2 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
3 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%
4 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
5 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
6 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
7 Which has soapy touch?
A. Na2B4O7
B. H3BO3
C. Ca2B6O11
D. HBO2
8 The element which has a simple cubic lattice in solid state is
A. Se
B. Te
C. Po
D. None of these
9 On alkali and alkaline earth metals down the group, there is decreasing trend in
A. m.p.
B. b.p.
C. Ionization potentiall
D. All of these
10 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te

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