Q58. When ' $x ^ { \prime } \times 10 ^ { - 2 } \mathrm {~mL}$ methanol (molar mass $= 32 \mathrm {~g}$; density $= 0.792 \mathrm {~g} / \mathrm { cm } ^ { 3 }$ ) is added to 100 mL water (density = $1 \mathrm {~g} / \mathrm { cm } ^ { 3 }$ ), the following diagram is obtained.\\
\includegraphics[max width=\textwidth, alt={}]{0b8a1bc0-351f-46d1-9f54-c9f2aa997d2e-11_469_835_1041_1110} $x =$ $\_\_\_\_$ (nearest integer). [Given : Molal freezing point depression constant of water at 273.15 K is $1.86 \mathrm {~K} \mathrm {~kg} \mathrm {~mol} ^ { - 1 }$ ]