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

Basicity of orthoposphoric acid is

Question # 2

Chile saltpetre has the chemical formula

Question # 3

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 4

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

Question # 5

Which of the following has highest dipole moment?

Question # 6

Hybridized in carbon is:

Question # 7

P2O5is heated with water to give

Question # 8

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 9

Permonosulphuric acid is known as

Question # 10

Phosphorus pentoxide finds use as

Question # 11

Which of the following sulphates has the highest solubility in water

Question # 12

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 13

Crystalline form of sulphur stable at room temperature is

Question # 14

Which of the following salt is used as purgative

Question # 15

Which of the following is acidic?

Question # 16

Which is not the form of silica?

Question # 17

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 # 18

Which of the following are electropositive in nature

Question # 19

Which one of the following elements occurs free in nature?

Question # 20

Sodium forms largely

Question # 21

Which salt is used for the treatment of hyperacidity in stomach

Question # 22

The maximum number of electrons in the outermost shall of s-black elements is

Question # 23

A compound used as eye wash:

Question # 24

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

Question # 25

Which of the following is the hardest metal among following

Question # 26

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

Question # 27

Sulphuric acid reacts with PCl5to give

Question # 28

S-block elements consist of

Question # 29

Hybridized in oxygen is:

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Some of the elements of a period show similar behavior with the elements of next group in next period this is called
A. Vertical relationship
B. Oblique relationship
C. Diagonal relationship
D. None
2 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
3 Which carbonate of alkali metals is insoluble in water
A. Na2CO3
B. K2CO3
C. Li2CO3
D. Cs2CO3
4 The acid which has a peroxy linkage is
A. Sulphurous acid
B. Pyrosulphuric acid
C. Dithionic acid
D. Caro's acid
5 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
6 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
7 All the elements of oxygen family are
A. Non metals
B. Metalloids
C. Radioactive
D. Polymorphic
8 Which of the element is not alkali metal
A. Lithium
B. Rubidium
C. Francium
D. Magnesium
9 Pb has inert pair of electrons:
A. One
B. Two
C. Three
D. Four
10 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer

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