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

What causes nitrogen to be chemically inert?

Question # 2

Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?

Question # 3

What is the formula of asbestos?

Question # 4

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 5

Pb has inert pair of electrons:

Question # 6

Borax is hydrated:

Question # 7

Which has soapy touch?

Question # 8

Gypsum is a common mineral of

Question # 9

Polyanion formation is maximum in

Question # 10

HNO2acts as an/a

Question # 11

Which is used in navigational equipments?

Question # 12

Which is litharge or massicot?

Question # 13

Which of the following is lighter

Question # 14

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

Question # 15

What is going to replace the petroleum?

Question # 16

Sodium hexametaphophate is known as

Question # 17

The acid used in lead storage cells is

Question # 18

What is chrome yellow?

Question # 19

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

Question # 20

Which is not the form of silica?

Question # 21

The alkaline earth elements have in their s-orbital

Question # 22

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

Question # 23

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 24

Which of the following is not the reactions of lithium

Question # 25

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

Question # 26

______ is used in breathing equipments for mountaineers and in space craft

Question # 27

Calcium carbide reacts with water to produce

Question # 28

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 29

Permonosulphuric acid is known as

Question # 30

Ozone is not

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these
2 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
3 Hybridized in carbon is:
A. sp
B. sp2
C. sp3
D. d2sp
4 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
5 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
6 Which on of the following compounds does not exist?
A. NCl5
B. AsF5
C. SbCl5
D. PF5
7 The electrolytic cell used for the production of metallic sodium is known as
A. Down's cell
B. Solvary's cell
C. Haber's cell
D. None of these
8 When SO2is passed through acidified K2Cr2O7solution
A. The solution turns blue
B. The solution is decolourised
C. SO2is reduced
D. Green Cr2(SO4)3is formed
9 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above
10 BiCl3on hydrolysis forms a white precipitate of
A. Bismuthio acid
B. Bismuth oxychloride
C. Bismuth pentachloride
D. Bismuth hydroxide

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