Question

_______agent forms the complex with the metal ions that are not required in the estimation

a)Masking
b)Demasking
c)Both
d) None​

Answer 1

Answer:

b demasking is the correct answer

Answer 2

Option b) Demasking agent

Demasking agent  forms the complex with the metal ions that are not required in the estimation

Explanation:

• Demasking is the process where the masked substance gains its ability to enter into a particular reaction.
• They are chemical reagents which are useful in introducing the impurities which were masked before the start of reaction
• In the process of the demasking process, the masked substance gets its ability again to enter into the desired chemical reaction.
• In chemical reactions for example complexometric titrations, demasking reagents are used to regain the ability of masked ions to enter the reaction with indicator and EDTA.
• The use of selective demasking of aluminum, Use of triethanolamine as a demasking agent is done.