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

Chemical composition of colemnite is:

Question # 2

All the elements of oxygen family are

Question # 3

What is going to replace the petroleum?

Question # 4

Which one of the following elements occurs free in nature?

Question # 5

The formula of lime stone is

Question # 6

Which of the following is lighter

Question # 7

The ore CaSO42H2O has the general name

Question # 8

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

Question # 9

P2O5is heated with water to give

Question # 10

Identify the incorrect statement with respect to ozone

Question # 11

Which one of the following is not an alkali metal

Question # 12

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 13

Hybridized in carbon is:

Question # 14

Which one of the following does not belong to alkaline earth metals

Question # 15

Which is an essential constituent of chlorophyll

Question # 16

Down's cell is used to prepare

Question # 17

Copper oxide is dedected by borax bead test with colour:

Question # 18

What is chrome yellow?

Question # 19

In the earth crust sodium is

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

What causes nitrogen to be chemically inert?

Question # 24

BiCl3on hydrolysis forms a white precipitate of

Question # 25

Marble is chemically

Question # 26

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

Question # 27

Which element forms an iron with charge 3+?

Question # 28

Borax is hydrated:

Question # 29

Alkaline earth metals posses two electrons in their outermost

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become
A. Stronger reducing agents
B. More ionic
C. More basic
D. More volatile
2 Which will have the maximum value of heat of hydration
A. Na+
B. Cs+
C. Ba+2
D. Mg+2
3 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
4 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
5 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
6 Tincal is a mineral of:
A. Al
B. B
C. Si
D. C
7 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
8 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
9 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
10 CaC2on hydrolysis form
A. CH4
B. C2H4
C. C2H2
D. C6H6

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