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 used in navigational equipments?

Question # 2

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

Question # 3

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

Question # 4

Which is not the form of silica?

Question # 5

______ reacts with alkalis to give hydrogen

Question # 6

The element caesium bears resemblance with

Question # 7

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 8

Which of the following sulphates has the highest solubility in water

Question # 9

The metal with highest electrical resistance at room temperature is

Question # 10

Which element forms an iron with charge 3+?

Question # 11

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

Question # 12

Which of the following phosphorus is most reactive?

Question # 13

Which of the following compounds is explosive in nature?

Question # 14

Density of aluminium is (g cm-3):

Question # 15

Which of the following salt is soluble in water

Question # 16

Which of the following is acidic?

Question # 17

Which of all following compound is not possible

Question # 18

What causes nitrogen to be chemically inert?

Question # 19

Sodium is never found free in nature because of its

Question # 20

The acid used in lead storage cells is

Question # 21

Lithium reacts with air to form

Question # 22

In the earth crust sodium is

Question # 23

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 24

A compound used as eye wash:

Question # 25

The structure of white phosphorus is

Question # 26

The number of electron that are paired in oxygen molecule are

Question # 27

Commercial common salt becomes slight damp on storing because

Question # 28

Phosphine is not obtained by the reaction when

Question # 29

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

Question # 30

Which will have the maximum value of heat of hydration

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
2 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
3 P2O5is heated with water to give
A. Hypophosphorus acid
B. Phosphorus acid
C. Hypophosphorus acid
D. Orthophosphorus acid
4 Which of the following is not the reactions of lithium
5 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
6 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
7 Which of the following oxides is peroxide?
A. Na2O2
B. MnO2
C. BaO
D. SO2
8 The chemical formula of Trona is
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
9 Aluminium oxide is:
A. Acidic oxide
B. Basic oxide
C. Amphoteric oxided
D. None of these
10 Gypsum is a common mineral of
A. Magnesium
B. Strontium
C. Calcium
D. Barium

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