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 carbonate of alkali metals is insoluble in water

Question # 2

The number of electron that are paired in oxygen molecule are

Question # 3

The structure of white phosphorus is

Question # 4

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

Question # 5

Boric acid cannot be used:

Question # 6

Which of the following fluorides does not exists?

Question # 7

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

Question # 8

The element which has a simple cubic lattice in solid state is

Question # 9

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

Question # 10

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 11

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

Question # 12

Identify the incorrect statement with respect to ozone

Question # 13

Which element among the following belongs to Group IV-A of the periodic table?

Question # 14

Sodium is never found free in nature because of its

Question # 15

S-block elements consist of

Question # 16

Which of the following oxides is peroxide?

Question # 17

Polyanion formation is maximum in

Question # 18

Which of the element is not alkali metal

Question # 19

Each of the following is true of white and red phosphours except that they

Question # 20

Which of the following salt is used as purgative

Question # 21

Which colour is imparted by sodium

Question # 22

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 23

Which is used in navigational equipments?

Question # 24

Which shows maximum catenation property?

Question # 25

Ozone is not

Question # 26

The chemical formula of Trona is

Question # 27

______ reacts with alkalis to give hydrogen

Question # 28

Commercial common salt becomes slight damp on storing because

Question # 29

Plaster of pares is obtained by heating

Question # 30

Which is used to remove air bubbles form metals?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above
3 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2
4 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
5 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
6 As a fixing agent in photography, sodium thisoulphate is used for
A. Dissolving out unreacted silver bromide
B. Converting silver
C. Reducing solubility of AgBr
D. Preventing overdeveloping and fogging
7 Which of the element is not an alkaline earth metal
A. Beryllium
B. Strontium
C. Barium
D. Caesium
8 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
9 ______ is used in breathing equipments for mountaineers and in space craft
A. Li2O
B. BeO
C. N2
D. KO2
10 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2

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