Chemistry · 2017
JEE Main · 9 April 2017, Shift 1 · Q48
Which of the following ions does not liberate hydrogen gas on reaction with dilute acids?
Which of the following ions does not liberate hydrogen gas on reaction with dilute acids ?
Official answer
(4)
$\displaystyle \mathrm{Mn}^{2+}$
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JEE Main 2017 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.