1.What is the freezing point of a solution containing 8.1 gm8.1\,\text{gm}8.1gm of HBr in 100 gm100\,\text{gm}100gm water assuming the acid to be 90%90\%90% ionised (KfK_fKf for water =1.86 K⋅molality−1= 1.86\,\text{K·molality}^{-1}=1.86K⋅molality−1)?a.0.85∘C0.85^\circ\text{C}0.85∘Cb.−3.53∘C-3.53^\circ\text{C}−3.53∘Cc.0∘C0^\circ\text{C}0∘Cd.−0.35∘C-0.35^\circ\text{C}−0.35∘CLogin to continueOnly logged in users canattempt or see the solution.