Import Question JSON

Current Question (ID: 18108)

Question:

$\text{Which of the following 0.1 M aqueous solutions will have the lowest freezing point?}$

Options:

1. $\text{Potassium Sulphate.}$
2. $\text{Sodium chloride.}$
3. $\text{Urea.}$
4. $\text{Glucose.}$

Solution:

$\text{Hint: Depression of freezing point depends on the number of particles.}$ $\text{Explanation:}$ $\text{Potassium Sulphate (K}_2 \text{SO}_4\text{) dissociate and produce three ions, that is, 2 K}^+\text{, and one SO}_4^{2-}\text{ ion.}$ $\text{Sodium chloride (NaCl) dissociate and produce two ions, that is, Na}^+\text{, and one Cl}^-\text{ ion.}$ $\text{Urea and glucose did not dissociate, and consider as one particle.}$ $\text{Depression of freezing point depends on the number of particles.}$ $\text{Hence, Potassium Sulphate generate highest number of particles. Thus, it has lowest freezing point.}$

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
}