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

______ is used in breathing equipments for mountaineers and in space craft

Question # 2

Which will have the maximum value of heat of hydration

Question # 3

Which is an essential constituent of chlorophyll

Question # 4

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

Question # 5

Basicity of orthoposphoric acid is

Question # 6

Carbonates of alkali metals dissolves freely in water to form

Question # 7

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

Question # 8

Which element has highest oxidation potential

Question # 9

Al is the most element in earth crust:

Question # 10

Corrundam is ore of:

Question # 11

CaC2on hydrolysis form

Question # 12

Which of the following salt is used as purgative

Question # 13

Which of the following element is most reactive

Question # 14

The acid used in lead storage cells is

Question # 15

Which of the following compounds is explosive in nature?

Question # 16

The most acidic of the following compounds is

Question # 17

Baking powder has which one of the following formula

Question # 18

Electron affinity of sulphur is

Question # 19

Which of the following equations represents the action of heat on NaHCO3

Question # 20

Dipole moment of CO molecule is:

Question # 21

Commercial common salt becomes slight damp on storing because

Question # 22

Ozone is not

Question # 23

Gypsum is a common mineral of

Question # 24

Which of the following elements is not present abundantly in earth's crust?

Question # 25

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 26

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

Question # 27

Which metal is used in the thermit process because of its activity?

Question # 28

Which of the following fluorides does not exists?

Question # 29

Which of the following phosphorus is most reactive?

Question # 30

The alkaline earth elements have in their s-orbital

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The oxide of beryllium is
A. Acidic
B. Amphoteric
C. Superoxide
D. Basic
2 Pb has inert pair of electrons:
A. One
B. Two
C. Three
D. Four
3 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
4 Down's cell is used to prepare
A. Sodium carbonate
B. Sodium bicarbonate
C. Sodium metal
D. Sodium hydroxide
5 Which of the following is lighter
A. Li
B. k
C. Na
D. Ca
6 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
7 The chemical formula of magnesite is
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
8 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
9 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
10 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these

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