Chemical Bonding & Molecular Structure Test

Result

Chemical Bonding & Molecular Structure Test - 26

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Weekly Quiz Competition

Question 1
4 / -1

The polarising power of the following anions, N^3- , O^2- and F^-, follow the order

A
N^3- > F^- > O^2-

B
O^2- > N^3- > F^-

C
O^2- > F^- > N^3-

D
N^3- > O^2- > F^-
Question 2
4 / -1

Among the following the maximum covalent character is shown by the compound

A
FeCl₂

B
SnCl₂

C
AlCl₃

D
MgCl₂
Question 3
4 / -1

In the following electron-dot structure, —calculate the formal charge from left to right nitrogen atom,

A
-1, -1, + 1

B
-1, + 1, - 1

C
+1, -1, - 1

D
+ 1, -1, + 1

Solution
Question 4
4 / -1

When a metal atom combines with a non-metal atom, the non-metal atom will

A
lose electrons and decrease in size

B
lose electrons and increase in size

C
gain electrons and decrease in size

D
gain electrons and increase in size
Question 5
4 / -1

Which of the following when dissolved in water forms a solution, i.e. non-conducting ?

A
Chile salt petre

B
Potash alum

C
Green vitriol

D
Ethyl alcohol
Question 6
4 / -1

A

B

C

D
Question 7
4 / -1

If Na⁺ ion is larger than Mg ²⁺ ion and S^2- is larger than Cl^- ion, which of the following will be least soluble in water ?

A
Sodium chloride

B
Sodium sulphide

C
Magnesium chloride

D
Magnesium sulphide
Question 8
4 / -1

A
4

B
1

C
2

D
None of these
Question 9
4 / -1

Which of the following represents the Lewis structure of N₂ molecule?

A

B

C

D
Question 10
4 / -1

A coordinate bond is a dative covalent bond. Which of the below is true ?

A
Three atom form bond by sharing their electrons

B
Two atoms form bond by sharing their electrons

C
Two atoms form bond and one of them provides both electrons

D
Two atoms form bond by sharing electrons obtained from third atom.