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 an essential constituent of chlorophyll

Question # 2

Chief ore of aluminium is:

Question # 3

Gypsum is a common mineral of

Question # 4

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

Question # 5

Which of the following elements is most metallic?

Question # 6

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 7

When SO2is passed through acidified K2Cr2O7solution

Question # 8

Which of the following salt is soluble in water

Question # 9

Phosphorus pentoxide finds use as

Question # 10

Corrundam is ore of:

Question # 11

Which element has highest oxidation potential

Question # 12

Baking powder has which one of the following formula

Question # 13

Red P can be obtained form white P by

Question # 14

______ reacts with alkalis to give hydrogen

Question # 15

The element caesium bears resemblance with

Question # 16

______ is called milk of magnesia

Question # 17

NaHCO3is prepared by

Question # 18

The ore CaSO42H2O has the general name

Question # 19

Plaster of pares is obtained by heating

Question # 20

Which salt is used for the treatment of hyperacidity in stomach

Question # 21

Orthophosphoric acid is

Question # 22

The chemical formula of gypsum is

Question # 23

Permonosulphuric acid is known as

Question # 24

Which is used in navigational equipments?

Question # 25

Which colour is imparted by sodium

Question # 26

Sodium forms largely

Question # 27

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

Question # 28

HNO2acts as an/a

Question # 29

Polyanion formation is maximum in

Question # 30

Lime, calcium oxide, is used in agriculture for

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
2 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
3 All the following decompose easily on heating to give oxygen except
A. Lead nitrate
B. Potassium chlorate
C. Mercuric oxide
D. Manganese dioxide
4 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
5 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil
6 Which of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
7 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
8 Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
A. Na2CO3
B. NaHCO3
C. NaOH
D. NaOCl
9 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
10 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl

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