Question

to prevent misuse on national currency a note ban is imposed on its use at certain times​

Answer 1

Answer:

To prevent the misuse of national currency a note ban is imposed on its use at certain times. These banning of notes was seen in India in 2016 which became famous for its "demonetization".

Explanation:

Indian government realized how people were hiding their black money and how their currency was being misused. People would try to get away with, "not paying taxes".

This was a mechanism used to see who will get their notes deposited and who wouldn't and then finally this attempt proved fruitful. Whoever had black money would never come forward thus making all their money nil.