- A$0.047$
- ✓$0.293$
- C$0.35$
- D$0.387$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$Ni^{2+} | Ni = -0.25\, V$
$Cu^{2+} | Cu = 0.34\, V$
$Ag^+ | Ag = 0.80\, V$
$Zn^{2+} | Zn = -0.76\, V$
Which of the following reactions under standard condition will not take place in the specified direction

$[A]$ With increase in temperature, the value of $K$ for exothermic reaction decreases because entropy change of the system is positive
$[B]$ With increase in temperature, the value of $K$ for endothermic reaction increases because unfavourable change in entropy of the surroundings decreases
$[C]$ With increase in temperature, the value of $K$ for endothermic reaction increases because the entropy change of the system is negative
$[D]$ With increase in temperature, the value of $K$ for exothermic reaction decreases because favourable change in entropy of the surrounding decreases
$H_3PO_4$ $\xrightarrow{{600\,{\,^o}C}}(Y)$
$(X)$ and $(Y)$ is