Question

To differentiate between conc. HNO3 and dil. HNO3, ………….. is added. *

a)FeNO3
b)FeO
C)AgNO3
D)Fe

Answer 1

Explanation:

Explanation: The solution having pH range between 1 to 3.5 will be concentrated while the remaining range till 7 will be dilute acid. Concentrated acid can be diluted by adding water to it.

Answer 2

Answer:

By adding AgNO3 (Silver Nitrate) to it.

The reaction is given as;

AgNO3+HCl ---------> AgCl + HNO3 (aq)