Import Question JSON

Current Question (ID: 21423)

Question:

$\text{In a mixture of A and B, components show negative deviations when:}$

Options:

1. $\text{A-B interaction is stronger than A-A and B-B interaction}$
2. $\text{A-B interaction is weaker than A-A and B-B interaction}$
3. $\Delta V_{\text{mix}} > 0, \quad \Delta S_{\text{mix}} > 0$
4. $\Delta V_{\text{mix}} = 0, \quad \Delta S_{\text{mix}} > 0$

Solution:

$\text{Hint: Force of attraction between A-B is stronger than A-A and B-B}$ $\text{In negative deviation, the total pressure is less than total pressure according to Raoult's law.}$ $\text{Negative deviation means lower vapor pressure, it suggests a high boiling point.}$ $\text{Negative deviation occurs when intermolecular force in A-B is stronger than in A-A and B-B.}$ $\text{The solution shows negative deviation has negative } \Delta V_{\text{mix}} \text{ value.}$ $\text{Hence, option 1 is the correct answer}$

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
}