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 is an essential constituent of chlorophyll

Question # 2

As a fixing agent in photography, sodium thisoulphate is used for

Question # 3

Which of the following elements is most metallic?

Question # 4

The metal with highest electrical resistance at room temperature is

Question # 5

Which shows maximum catenation property?

Question # 6

Sodium is never found free in nature because of its

Question # 7

What is the formula of asbestos?

Question # 8

Plaster of pares is obtained by heating

Question # 9

HNO2acts as an/a

Question # 10

Which of the following are electropositive in nature

Question # 11

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 12

The most acidic of the following compounds is

Question # 13

White phosphorus is

Question # 14

Which of the following has highest dipole moment?

Question # 15

Electron affinity of sulphur is

Question # 16

S-block elements consist of

Question # 17

Chief ore of aluminium is:

Question # 18

Which property is not present in Al?

Question # 19

Which of the following is lighter

Question # 20

The oxide of beryllium is

Question # 21

Hypo is used in photography for

Question # 22

The chemical formula of gypsum is

Question # 23

When SO2is passed through acidified K2Cr2O7solution

Question # 24

The chemical formula of magnesite is

Question # 25

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

Question # 26

Where lime is not used

Question # 27

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

Question # 28

Which of the following form normal oxide

Question # 29

Which one of the following properties is not correct for ozone?

Question # 30

Polyanion formation is maximum in

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
2 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
3 HNO2acts as an/a
A. Acid
B. Oxidizing agent
C. Reducing agent
D. All the three
4 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
5 Which of the element is not alkali metal
A. Lithium
B. Rubidium
C. Francium
D. Magnesium
6 Commercial common salt becomes slight damp on storing because
A. Common salt is hygroscope
B. Common salt contains some impurity, which is hygroscopic
C. Salt in efflorescent
D. Salt is crystalline
7 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
8 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
9 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
10 Which of the following is acidic?
A. SO3
B. N2O
C. BeO
D. HgO

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