Ncert Exercises & Solutions

Match the items in Column I with relevant items in Column II.

Column I	Column II
A. Ions having a positive charge	1. +7
B. The sum of oxidation number of all atoms in a neutral molecule	2. -1
C. Oxidation number of hydrogen ion. (H⁺)	3. +1
D. Oxidation number of fluorine in NaF	4. 0
E. Ions having a negative charge	5. Cation
	6. Anion

Codes

A B C D E

1. 5 4 3 2 6

2. 1 2 3 5 4

3. 5 4 3 2 1

4. 4 5 3 2 1

Hint: Ions having a positive charge is known as cation

A. Ions having positive charge

\to

Cation

B. The sum of oxidation number of all atoms in a neutral molecule

\to

Zero

C. Oxidation number of hydrogen ion (H⁺)

\to

D. Oxidation number of fluorine in NaF

\to

-1

E. Ions having negative charge

\to

Anion