Fill in the blanks choosing appropriate word/words from these given in the brackets :
(increases, decreases, the highest, the lowest, elevation, directly depression, molality, mole fraction, `gt 1, lt 1, DeltaV, DeltaS`, number of solute particles, nature of solute particles, hypotonic, T, `- 3.72^(@)C, -1.86^(@)C`, zero, one, two, more than, less than, 1 kg, 1 mole, molal, same extent, solution, equivalent.)
The freezing point of 1 m NaCl solution assuming NaCl to be 100% ionized in water is......

Explanation

To solve the question regarding the freezing point of a 1M NaCl solution, we will follow these steps:

### Step 1: Understand the Concept of Freezing Point Depression
The freezing point of a solution is lowered when a solute is added. This phenomenon is known as freezing point depression. The formula for calculating the depression in freezing point (ΔTf) is given by:

\[ \Delta T_f = i \cdot K_f \cdot m \]
...