Q. Indelible ink, recently seen in the Lok Sabha elections, is prepared by using which chemical?
Answer:
Silver Nitrate
Notes: As Lok Sabha elections approach, the iconic symbol of Indian polls, a purple-black indelible ink mark on the left index finger, becomes ubiquitous. The ink, containing silver nitrate, remains visible under UV light and resists soap and liquids for up to 72 hours. Manufactured by CSIR and licensed to Mysore Paints & Varnish Ltd. since 1962, it's exported to over 25 countries. Mandated by the Representation of the People Act (RoPA) of 1951, it ensures electoral integrity.