MCQ
Cell reaction is spontaneous, when
- A$E_{red}^o$ is negative
- ✓$\Delta G$ is negative
- C$E_{oxi}^o$ is positive
- D$\Delta G$ is positive
If the electrode potential is assumed to be positive then, When $\Delta G\, <\,0$, the cell reaction is spontaneous.
When $\Delta G \,>\,0$, the cell reaction is non-spontaneous.
When $\Delta G \,=\,0$, the reaction is in equilibrium.
Therefore, the correct answer is option $B$.
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Statement $(I)$ : A $\pi$ bonding $MO$has lower electron density above and below the inter-nuclear asix.
Statement $(II)$ : The $\pi^*$ antibonding $MO$ has a node between the nucles.In the light of the above statements, choose the most appropriate answer from the options given below: