Lead storage battery contains \(38 \%\) by weight solution of \(H _2 SO _4\). The van't Hoff factor is 2.67 at this conc…

Lead storage battery contains \(38 \%\) by weight solution of \(H _2 SO _4\). The van't Hoff factor is 2.67 at this concentration. The temperature in Kelvin at which the solution in the battery will freeze is
Given \(K _{ f }=1.8 ~K kg mol ^{-1}\)

[JEE Main 2023, 30 Jan (Shift 2)]