The equation that is incorrect is

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(A) According to Kohlrausch's law,the molar conductivity at infinite dilution is the sum of the contributions of individual ions.For option $A$: $(\La

Vedclass · Accepted Answer

$(\Lambda_{m}^{0})_{NaBr} - (\Lambda_{m}^{0})_{NaI} = (\Lambda_{m}^{0})_{KBr} - (\Lambda_{m}^{0})_{NaBr}$

Vedclass · Answer

(A) According to Kohlrausch's law,the molar conductivity at infinite dilution is the sum of the contributions of individual ions.For option $A$: $(\Lambda_{m}^{0})_{NaBr} - (\Lambda_{m}^{0})_{NaI} = (\lambda_{Na^+} + \lambda_{Br^-}) - (\lambda_{Na^+} + \lambda_{I^-}) = \lambda_{Br^-} - \lambda_{I^-}$.On the right side: $(\Lambda_{m}^{0})_{KBr} - (\Lambda_{m}^{0})_{NaBr} = (\lambda_{K^+} + \lambda_{Br^-}) - (\lambda_{Na^+} + \lambda_{Br^-}) = \lambda_{K^+} - \lambda_{Na^+}$.Since $\lambda_{Br^-} - \lambda_{I^-} 
eq \lambda_{K^+} - \lambda_{Na^+}$,this equation is incorrect.For option $B$: $(\Lambda_{m}^{0})_{HCl} + (\Lambda_{m}^{0})_{NaOH} - (\Lambda_{m}^{0})_{NaCl} = (\lambda_{H^+} + \lambda_{Cl^-}) + (\lambda_{Na^+} + \lambda_{OH^-}) - (\lambda_{Na^+} + \lambda_{Cl^-}) = \lambda_{H^+} + \lambda_{OH^-} = (\Lambda_{m}^{0})_{H_{2}O}$. This is correct.For option $C$: $(\Lambda_{m}^{0})_{KCl} - (\Lambda_{m}^{0})_{NaCl} = \lambda_{K^+} - \lambda_{Na^+}$ and $(\Lambda_{m}^{0})_{KBr} - (\Lambda_{m}^{0})_{NaBr} = \lambda_{K^+} - \lambda_{Na^+}$. This is correct.For option $D$: $(\Lambda_{m}^{0})_{NaBr} - (\Lambda_{m}^{0})_{NaCl} = \lambda_{Br^-} - \lambda_{Cl^-}$ and $(\Lambda_{m}^{0})_{KBr} - (\Lambda_{m}^{0})_{KCl} = \lambda_{Br^-} - \lambda_{Cl^-}$. This is correct.

List-$I$	List-$II$
$(A)$ Potential of hydrogen electrode at $pH = 10$	$(I)$ $0.76 \ V$
$(B)$ $Cu^{2+}\|Cu$	$(II)$ $0.059$
$(C)$ $Zn\|Zn^{2+}$	$(III)$ $-0.591 \ V$
$(D)$ $\frac{2.303RT}{F}$	$(IV)$ $0.337 \ V$
	$(V)$ $-0.76 \ V$

$A$. Leclanche cell	$1$. Converts energy of combustion into electrical energy
$B$. Fuel cell	$2$. Rechargeable cell
$C$. Ni-Cd cell	$3$. At anode,$Zn \longrightarrow Zn^{2+} + 2e^{-}$

Similar Questions

Given:
$\lambda _{ClCH_2COONa} = 224 \ \Omega ^{-1} \ cm^2 \ gmeq^{-1}$
$\lambda _{NaCl} = 38.2 \ \Omega ^{-1} \ cm^2 \ gmeq^{-1}$
$\lambda _{HCl} = 203 \ \Omega ^{-1} \ cm^2 \ gmeq^{-1}$
What is the value of $\lambda _{ClCH_2COOH}$ in $\Omega ^{-1} \ cm^2 \ gmeq^{-1}$?

Match the entries from Column $I$ and Column $II$ and choose the correct order.
$A$. Leclanche cell $1$. Converts energy of combustion into electrical energy
$B$. Fuel cell $2$. Rechargeable cell
$C$. Ni-Cd cell $3$. At anode,$Zn \longrightarrow Zn^{2+} + 2e^{-}$

Given that $E^o_{Fe^{2+}/Fe} = -0.44 \ V$,$E^o_{Cu^{2+}/Cu} = 0.34 \ V$,and $E^o_{Ag^+/Ag} = 0.80 \ V$. Which of the following statements is correct?

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