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

Which one of the following pentafluorides cannot be formed?

Question # 2

What is going to replace the petroleum?

Question # 3

Basicity of orthoposphoric acid is

Question # 4

Which carbonate of alkali metals is insoluble in water

Question # 5

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

Question # 6

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

Question # 7

CaC2on hydrolysis form

Question # 8

Which has soapy touch?

Question # 9

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

Question # 10

Which of the following salt is soluble in water

Question # 11

Boric acid cannot be used:

Question # 12

Which is used to remove air bubbles form metals?

Question # 13

Which is litharge or massicot?

Question # 14

Crystalline form of sulphur stable at room temperature is

Question # 15

The metal with highest electrical resistance at room temperature is

Question # 16

Solvay process is used in the manufacture of

Question # 17

Silicon atom is hybridized:

Question # 18

Which is an essential constituent of chlorophyll

Question # 19

Which colour is imparted by sodium

Question # 20

Heavy water is obtained by

Question # 21

Which of all following compound is not possible

Question # 22

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

Question # 23

Which is used in navigational equipments?

Question # 24

Plaster of pares is obtained by heating

Question # 25

The chemical formula of Trona is

Question # 26

______ is called milk of magnesia

Question # 27

Which of the following salt is used as purgative

Question # 28

What causes nitrogen to be chemically inert?

Question # 29

______ reacts with alkalis to give hydrogen

Question # 30

Red P can be obtained form white P by

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which is used in navigational equipments?
A. B
B. Be
C. Mg
D. Al
2 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
3 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
4 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
5 Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
6 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
7 The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is
A. Hypophosphorus acid
B. Orthophosphorus acid
C. Pyrophosphorus acid
D. Metaphosphorus acid
8 Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is
9 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
10 Which of the following is the hardest metal among following
A. Li
B. Na
C. Rb
D. K

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