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

______ reacts with alkalis to give hydrogen

Question # 2

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

Question # 3

Which of the following element is most reactive

Question # 4

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 5

All the elements of oxygen family are

Question # 6

Which of the following is acidic?

Question # 7

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

Question # 8

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 9

Basicity of orthoposphoric acid is

Question # 10

Sulphuric acid has great affinity for water because

Question # 11

White P when boiled with strong solution of caustic soda produces

Question # 12

Which of the following is lighter

Question # 13

Al is the most element in earth crust:

Question # 14

The alkali metals form

Question # 15

Which of the following salt is soluble in water

Question # 16

Which carbonate of alkali metals is insoluble in water

Question # 17

The alkaline earth elements have in their s-orbital

Question # 18

NaHCO3is commonly called

Question # 19

Sodium is never found free in nature because of its

Question # 20

Marble is chemically

Question # 21

Pb has inert pair of electrons:

Question # 22

Which one of the following properties is not correct for ozone?

Question # 23

Which of the following is the hardest metal among following

Question # 24

Which is used in navigational equipments?

Question # 25

Which of the following equations represents the action of heat on NaHCO3

Question # 26

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

Question # 27

Phosphine is not obtained by the reaction when

Question # 28

Commercial common salt becomes slight damp on storing because

Question # 29

Identify the incorrect statement with respect to ozone

Question # 30

Hybridized in carbon is:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
2 Which is an essential constituent of chlorophyll
A. Be
B. Fe
C. Mg
D. Ca
3 Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?
A. 1s, 2s2, 2p6, 3s2, 3p6, 4s2
B. 1s2 , 2s2 , 2p6 , 3s2, 3p1
C. 1s2, 2s2, 2p6
D. 1s2, 2s2, 2p6, 3s2, 3p3
4 Which of the following form normal oxide
A. K
B. Li
C. Na
D. None
5 Which is used in navigational equipments?
A. B
B. Be
C. Mg
D. Al
6 Which element among the following belongs to Group IV-A of the periodic table?
A. Barium
B. Iodine
C. Lead
D. Oxygen
7 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
8 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
9 Which metal of Group-II A of the periodic Table, will form the least ionic chloride
A. Be
B. Mg
C. Ca
D. Sr
10 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None

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