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(A, B, D) : In $CrO_5$ (butterfly structure), there are four peroxide linkages and one double bond. The oxidation state of $Cr$ is $+6$. This statemen

Vedclass · Accepted Answer

$\Delta H > \Delta U$ for the reaction $N_2O_{4(g)} \rightarrow 2NO_{2(g)}$, provided both gases behave ideally

Vedclass · Answer

(A, B, D) : In $CrO_5$ (butterfly structure), there are four peroxide linkages and one double bond. The oxidation state of $Cr$ is $+6$. This statement is correct.$B$: For the reaction $N_2O_{4(g)} ightarrow 2NO_{2(g)}$, $\Delta n_g = 2 - 1 = 1$. Since $\Delta H = \Delta U + \Delta n_g RT$, and $\Delta n_g > 0$, $\Delta H > \Delta U$. This statement is correct.$C$: For $0.1 \ N \ H_2SO_4$, $[H^+] = 0.1 \ N$. For $0.1 \ N \ HCl$, $[H^+] = 0.1 \ N$. Since both have the same $[H^+]$, their pH is the same. This statement is incorrect.$D$: The value of $\frac{2.303 RT}{F}$ at $25^{\circ} C$ $(298 \ K)$ is $\frac{2.303 	imes 8.314 	imes 298}{96500} \approx 0.0591 \ V$. This statement is correct.

Identify the correct statement$(s)$:

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