Question
Which chemical compound is used in the indelible ink for
elections?Solution
Silver nitrate is used in the indelible ink applied to voters' fingers during elections. The compound is colorless but becomes visible under UV light and is resistant to soap and water, ensuring it remains visible for up to 72 hours. The ink was developed by CSIR for the Election Commission of India and is mentioned in the Representation of the People Act, 1951.
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