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

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 2

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

Question # 3

The metal with highest electrical resistance at room temperature is

Question # 4

The chemical formula of magnesite is

Question # 5

Silicon atom is hybridized:

Question # 6

The ore CaSO42H2O has the general name

Question # 7

Which of the following has highest dipole moment?

Question # 8

Sulphuric acid has great affinity for water because

Question # 9

Carbonates of alkali metals dissolves freely in water to form

Question # 10

The formula of lime stone is

Question # 11

Solvay process is used in the manufacture of

Question # 12

HNO2acts as an/a

Question # 13

All the following decompose easily on heating to give oxygen except

Question # 14

Alkaline earth metals are usually

Question # 15

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

Question # 16

Which salt is used for preserving food

Question # 17

Which of the following element is most reactive

Question # 18

Which element forms an iron with charge 3+?

Question # 19

Down's cell is used to prepare

Question # 20

Which is not the form of silica?

Question # 21

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

Question # 22

The chemical formula of Trona is

Question # 23

Aluminium oxide is:

Question # 24

Plaster of pares is obtained by heating

Question # 25

NaHCO3is prepared by

Question # 26

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

Question # 27

Pb has inert pair of electrons:

Question # 28

The number of electron that are paired in oxygen molecule are

Question # 29

Which of the following is the hardest metal among following

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which carbonate of alkali metals is insoluble in water
A. Na2CO3
B. K2CO3
C. Li2CO3
D. Cs2CO3
2 Which element among the following belongs to Group IV-A of the periodic table?
A. Barium
B. Iodine
C. Lead
D. Oxygen
3 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
4 Which has soapy touch?
A. Na2B4O7
B. H3BO3
C. Ca2B6O11
D. HBO2
5 Which is an essential constituent of chlorophyll
A. Be
B. Fe
C. Mg
D. Ca
6 Heavy water is obtained by
A. Prolonged electrolysis of water
B. Dissolving heavy salt in water
C. Simple distillation of water
D. Removing impurities of calcium and magnesium form water
7 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
8 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
9 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
10 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

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