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

Question # 2

NaHCO3is commonly called

Question # 3

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

Question # 4

Which colour is imparted by sodium

Question # 5

The chemical formula of chile salt peter is

Question # 6

BiCl3on hydrolysis forms a white precipitate of

Question # 7

Which of the following form normal oxide

Question # 8

Sulphuric acid reacts with PCl5to give

Question # 9

Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?

Question # 10

Bond angle is minimum for

Question # 11

Which of the following sulphates is not soluble in water

Question # 12

A compound used as eye wash:

Question # 13

Commercial common salt becomes slight damp on storing because

Question # 14

Lime, calcium oxide, is used in agriculture for

Question # 15

Identify the incorrect statement with respect to ozone

Question # 16

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

Question # 17

Sodium hexametaphophate is known as

Question # 18

Calcium carbide reacts with water to produce

Question # 19

Hybridized in oxygen is:

Question # 20

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

Question # 21

Which of the following is lighter

Question # 22

Permonosulphuric acid is known as

Question # 23

Which of the element is not alkali metal

Question # 24

The acid used in lead storage cells is

Question # 25

Solvay process is used in the manufacture of

Question # 26

The alkali metals form

Question # 27

Which salt is used for the treatment of hyperacidity in stomach

Question # 28

The metal with highest electrical resistance at room temperature is

Question # 29

Electron affinity of sulphur is

Question # 30

Oleum is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Identify the incorrect statement with respect to ozone
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations
2 Which is an essential constituent of chlorophyll
A. Be
B. Fe
C. Mg
D. Ca
3 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
4 Which one of the following pentafluorides cannot be formed?
A. PF5
B. AsF5
C. SbF5
D. BiF5
5 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%
6 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
7 What is the formula of asbestos?
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
8 Chief ore of aluminium is:
A. Na3AIF6
B. Al2O3.2H2O
C. Al2O3
D. Al2O3 .H2O
9 CaC2on hydrolysis form
A. CH4
B. C2H4
C. C2H2
D. C6H6
10 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O

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