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

The silver bromide in hypo (Na2S2O3) solution is

Question # 2

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 3

Which of the following is formed by the action of water on sodium peroxide?

Question # 4

Which of the following is the hardest metal among following

Question # 5

When SO2is passed through acidified K2Cr2O7solution

Question # 6

Sodium is never found free in nature because of its

Question # 7

Alkaline earth metals are usually

Question # 8

What causes nitrogen to be chemically inert?

Question # 9

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 10

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

Question # 11

Chile saltpetre has the chemical formula

Question # 12

The ore CaSO42H2O has the general name

Question # 13

Which is an essential constituent of chlorophyll

Question # 14

The alkali metals form

Question # 15

What is the formula of asbestos?

Question # 16

Which of the following is acidic?

Question # 17

Chief ore of aluminium is:

Question # 18

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

Question # 19

Sodium hexametaphophate is known as

Question # 20

Identify the incorrect statement with respect to ozone

Question # 21

Copper oxide is dedected by borax bead test with colour:

Question # 22

Which of the element is not alkali metal

Question # 23

Which of the following sulphates has the highest solubility in water

Question # 24

Which one of the following pentafluorides cannot be formed?

Question # 25

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

Question # 26

Commercial common salt becomes slight damp on storing because

Question # 27

Tincal is a mineral of:

Question # 28

Al is the most element in earth crust:

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become
A. Stronger reducing agents
B. More ionic
C. More basic
D. More volatile
2 The number of unpaired electrons in the p-subshell of oxygen atom
A. 1
B. 2
C. 3
D. 4
3 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
4 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
5 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
6 Which colour is imparted by sodium
A. Yellow
B. Violet
C. Red
D. Crimson
7 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
8 Electron affinity of sulphur is
A. More than O and Se
B. More than O but less than Se
C. Less than O but more than Se
D. Equal to O and Se
9 Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is
10 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these

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