Question

18. Which is the chemical constituent of indelible ink used in elections to stain the
forefingers of voters ?
(A) Mercuric Nitrate
(B) Silver Nitrate
(C) Mercuric Chloride
(D) Silver Chloride
(E) Mercury-Silver Acetate​

Answer 1

Answer:

Silver Nitrate

Explanation:

Indelible ink typically contain Silver Nitrate which stains the skin on exposure of ultraviolet light, leaving a mark that is impossible to wash off and is only removed on external skin cells are replaced.

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Answer 2

Answer:

(B) Silver Nitrate

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