Chemistry · 2015
JEE Main · 11 April 2015, Shift 1 · Q60
A pink coloured salt turns blue on heating. The presence of which cation is most likely?
A pink coloured salt turns blue on heating. The presence of which cation is most likely ?
Official answer
(4)
$\displaystyle \mathrm{Co}^{2+}$
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JEE Main 2015 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.