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

00:00
Question # 1

Which is used to remove air bubbles form metals?

Question # 2

Which element form group 15 gives most basic compound with hydrogen?

Question # 3

Baking powder has which one of the following formula

Question # 4

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

Question # 5

NaHCO3is commonly called

Question # 6

The element caesium bears resemblance with

Question # 7

Dipole moment of CO molecule is:

Question # 8

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 9

Which of the element is not alkali metal

Question # 10

Boric acid cannot be used:

Question # 11

Commercial common salt becomes slight damp on storing because

Question # 12

Which of the following are electropositive in nature

Question # 13

What is going to replace the petroleum?

Question # 14

Sodium hexametaphophate is known as

Question # 15

Which element has highest oxidation potential

Question # 16

Which colour is imparted by sodium

Question # 17

Which of the following salt is soluble in water

Question # 18

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

Question # 19

Which of the following oxides is peroxide?

Question # 20

Which one of the following pentafluorides cannot be formed?

Question # 21

Which is used in navigational equipments?

Question # 22

The chemical formula of chile salt peter is

Question # 23

Which carbonate of alkali metals is insoluble in water

Question # 24

Phosphine is not obtained by the reaction when

Question # 25

______ gives peroxide

Question # 26

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

Question # 27

Which element forms an iron with charge 3+?

Question # 28

Density of aluminium is (g cm-3):

Question # 29

The number of electron that are paired in oxygen molecule are

Question # 30

Electron affinity of sulphur is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following oxides is peroxide?
A. Na2O2
B. MnO2
C. BaO
D. SO2
2 Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
A. Na2CO3
B. NaHCO3
C. NaOH
D. NaOCl
3 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
4 The chemical formula of Epson salt is
A. MgSO4
B. MgCl2
C. MgSO4. 7H2O
D. MgCl2. 7H2O
5 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
6 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
7 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
8 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
9 What is the formula of asbestos?
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
10 Which is an essential constituent of chlorophyll
A. Be
B. Fe
C. Mg
D. Ca

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