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Chemistry · 2026

JEE Main · 2 April 2026, Shift 1 · Q57

An electrochemical cell is constructed using half cells in the direction of spontaneous change Fe ( OH )_2( s )+2 e^- → Fe ( s )+2 OH^-( aq ),…

An electrochemical cell is constructed using half cells in the direction of spontaneous change $$\begin{array}{ll} \mathrm{Fe}(\mathrm{OH})_2(\mathrm{~s})+2 \mathrm{e}^{-} \rightarrow \mathrm{Fe}(\mathrm{~s})+2 \mathrm{OH}^{-}(\mathrm{aq}) & \mathrm{E}^\theta=-0.88 \mathrm{~V} \\ \text { and } \mathrm{AgBr}(\mathrm{~s})+\mathrm{e}^{-} \rightarrow \mathrm{Ag}(\mathrm{~s})+\mathrm{Br}^{-}(\mathrm{aq}) & \mathrm{E}^\theta=+0.07 \mathrm{~V} \end{array} $$ Which of the following option is correct ?
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JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.