Import Question JSON

Current Question (ID: 18105)

Question:

$\text{The graph, amongst the following, that represents depression in the freezing point is:}$

Options:

1. $\begin{array}{c} \text{Vapour pressure} \\ \uparrow \\ \text{frozen solvent} \\ \text{liquid solvent} \\ \text{solution} \\ \Delta T_f \\ T_f \\ T_f^0 \\ \text{Temperature/K} \rightarrow \end{array}$
2. $\begin{array}{c} \text{Vapour pressure} \\ \uparrow \\ \text{frozen solvent} \\ \text{solution} \\ \text{Liquid solvent} \\ \Delta T_f \\ T_f \\ T_f^0 \\ \text{Temperature/K} \rightarrow \end{array}$
3. $\begin{array}{c} \text{Vapour pressure} \\ \uparrow \\ \text{frozen solvent} \\ \text{liquid solvent} \\ \text{solution} \\ \Delta T_f \\ T_f^0 \\ T_f \\ \text{Temperature/K} \rightarrow \end{array}$
4. $\text{None of the above}$

Solution:

$\text{Hint: Freezing point of the solution is less than the freezing point of pure solvent.}$ $\text{When a non-volatile solute is added to pure solvent then the freezing point of the pure solvent decreases.}$ $\text{Hence, the freezing point of the solution is less than the freezing point of the pure solvent.}$ $\text{Therefore, the correct option is 1.}$

Import JSON File

Upload a JSON file containing LaTeX/MathJax formatted question, options, and solution.

Expected JSON Format:

{
  "question": "The mass of carbon present in 0.5 mole of $\\mathrm{K}_4[\\mathrm{Fe(CN)}_6]$ is:",
  "options": [
    {
      "id": 1,
      "text": "1.8 g"
    },
    {
      "id": 2,
      "text": "18 g"
    },
    {
      "id": 3,
      "text": "3.6 g"
    },
    {
      "id": 4,
      "text": "36 g"
    }
  ],
  "solution": "\\begin{align}\n&\\text{Hint: Mole concept}\\\\\n&1 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\text{ moles of carbon atom}\\\\\n&0.5 \\text{ mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6] = 6 \\times 0.5 \\text{ mol} = 3 \\text{ mol}\\\\\n&1 \\text{ mol of carbon} = 12 \\text{ g}\\\\\n&3 \\text{ mol carbon} = 12 \\times 3 = 36 \\text{ g}\\\\\n&\\text{Hence, 36 g mass of carbon present in 0.5 mole of } \\mathrm{K}_4[\\mathrm{Fe(CN)}_6].\n\\end{align}",
  "correct_answer": 4
}