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

White phosphorus is

Question # 2

Bond angle is minimum for

Question # 3

Which one of the following pentafluorides cannot be formed?

Question # 4

Which is an essential constituent of chlorophyll

Question # 5

Sodium should be stored in

Question # 6

The number of electron that are paired in oxygen molecule are

Question # 7

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 8

Ozone is not

Question # 9

The alkali metals form

Question # 10

Which of the following oxides is peroxide?

Question # 11

All the elements of oxygen family are

Question # 12

P2O5is heated with water to give

Question # 13

Which of the following salt is soluble in water

Question # 14

The chemical formula of magnesite is

Question # 15

Al is the most element in earth crust:

Question # 16

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 17

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 18

Corrundam is ore of:

Question # 19

The silver bromide in hypo (Na2S2O3) solution is

Question # 20

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

Question # 21

Chile saltpetre has the chemical formula

Question # 22

Which one of the following is not an alkali metal

Question # 23

Alkali metals react violently with halogens to form

Question # 24

Which element has highest oxidation potential

Question # 25

Which of the following phosphorus is most reactive?

Question # 26

Which of the following has highest dipole moment?

Question # 27

Which on of the following compounds does not exist?

Question # 28

Which of the following is acidic?

Question # 29

Calcium carbide reacts with water to produce

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
2 HNO2acts as an/a
A. Acid
B. Oxidizing agent
C. Reducing agent
D. All the three
3 Identify the incorrect statement with respect to ozone
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations
4 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
5 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur
6 Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
A. Na2CO3
B. NaHCO3
C. NaOH
D. NaOCl
7 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
8 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
9 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
10 Which of all following compound is not possible

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