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:

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