1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The conductivity of centimolar solution of KCl at $298$ K is $0.021\text{ Ohm}^{-1}\text{cm}^{-1}$ and the resistance of the cell containing the solution at $298$ K is $60\,\Omega$. The value of cell constant ($G^*$) is __________.
A
$3.28\text{ cm}^{-1}$
B
$1.26\text{ cm}^{-1}$
C
$3.34\text{ cm}^{-1}$
D
$1.34\text{ cm}^{-1}$
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Given below are the half-cell reactions:
$\text{Mn}^{2+} + 2e^- \rightarrow \text{Mn} \quad (E^0 = -1.18\text{ V})$
$2(\text{Mn}^{3+} + e^- \rightarrow \text{Mn}^{2+}) \quad (E^0 = +1.51\text{ V})$
The $E^0_{cell}$ for $3\text{Mn}^{2+} \rightarrow \text{Mn} + 2\text{Mn}^{3+}$ will be _____________.
A
$-2.69$ V, the reaction will not occur (Non-Spontaneous)
B
$-2.69$ V, the reaction will occur (Spontaneous)
C
$-0.33$ V, the reaction will not occur (Non-Spontaneous)
D
$-0.33$ V, the reaction will occur (Spontaneous)
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
$\Lambda^0_{m(\text{NH}_4\text{OH})}$ is equal to ____
A
$\Lambda^0_{m(\text{NH}_4\text{OH})} + \Lambda^0_{m(\text{NH}_4\text{Cl})} - \Lambda^0_{m(\text{HCl})}$
B
$\Lambda^0_{m(\text{NH}_4\text{Cl})} + \Lambda^0_{m(\text{NaOH})} - \Lambda^0_{m(\text{NaCl})}$
C
$\Lambda^0_{m(\text{NH}_4\text{Cl})} + \Lambda^0_{m(\text{NaCl})} - \Lambda^0_{m(\text{NaOH})}$
D
$\Lambda^0_{m(\text{NaOH})} + \Lambda^0_{m(\text{NaCl})} - \Lambda^0_{m(\text{NH}_4\text{Cl})}$
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
During the electrolysis of acidified water, $16$ g of $\text{O}_2$ gas is formed at anode. The volume of $\text{H}_2$ gas liberated at cathode under STP conditions is
A
$22.4$ L
B
$11.2$ L
C
$2.24$ L
D
$1.12$ L