JEE PYQ: Electrochemistry Question 12
Question 12 - 2020 (03 Sep Shift 1)
Let $C_{\text{NaCl}}$ and $C_{\text{BaSO}_4}$ be the conductances (in S) measured for saturated aqueous solutions of NaCl and BaSO$_4$, respectively, at a temperature T. Which of the following is false?
(1) Ionic mobilities of ions from both salts increase with T
(2) $C_{\text{BaSO}4}(T_2) > C{\text{BaSO}_4}(T_1)$ for $T_2 > T_1$
(3) $C_{\text{NaCl}}(T_2) > C_{\text{NaCl}}(T_1)$ for $T_2 > T_1$
(4) None of the above
Show Answer
Answer: (4) None of the above
Solution
Ionic mobility increases with temperature. Conductance of NaCl solution is independent of temperature above 40$^\circ$C. Since temperature is not specified, none of the options is definitively correct.
BETA
