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 equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 2

Which of the following phosphorus is most reactive?

Question # 3

Lithium reacts with air to form

Question # 4

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?

Question # 5

______ gives peroxide

Question # 6

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

Question # 7

Phosphorus pentoxide finds use as

Question # 8

Chief ore of aluminium is:

Question # 9

Which of the following compounds is explosive in nature?

Question # 10

Phosphide ion has the electronic structure similar to that of

Question # 11

Alkaline earth metals posses two electrons in their outermost

Question # 12

Aluminium oxide is:

Question # 13

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

Question # 14

Which one of the following does not belong to alkaline earth metals

Question # 15

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

Question # 16

Which of all following compound is not possible

Question # 17

Which of the following fluorides does not exists?

Question # 18

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 19

All the following decompose easily on heating to give oxygen except

Question # 20

Phosphine is not obtained by the reaction when

Question # 21

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

Question # 22

When SO2is passed through acidified K2Cr2O7solution

Question # 23

Which is an essential constituent of chlorophyll

Question # 24

Which element forms an iron with charge 3+?

Question # 25

The maximum number of electrons in the outermost shall of s-black elements is

Question # 26

S-block elements consist of

Question # 27

Which of the following salt is soluble in water

Question # 28

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

Question # 29

Pb has inert pair of electrons:

Question # 30

Crystalline form of sulphur stable at room temperature is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The element which has a simple cubic lattice in solid state is
A. Se
B. Te
C. Po
D. None of these
2 In a group IIA from top to bottom as the atomic number increases, there is regular decreases in
A. Ionic size
B. Atomic size
C. Ionization potential
D. None of these
3 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
4 Which one of the following properties is not correct for ozone?
A. It oxidizes lead sulphides
B. It oxidizes potassium iodide
C. It oxidizes mercury
D. It cannot act as a bleaching agent
5 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4
6 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
7 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
8 Which metal of Group-II A of the periodic Table, will form the least ionic chloride
A. Be
B. Mg
C. Ca
D. Sr
9 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water
10 Tincal is a mineral of:
A. Al
B. B
C. Si
D. C

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