Import Question JSON

Current Question (ID: 20946)

Question:

$\text{The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of Na}^+ \text{ will be -}$

Options:

1. $-10.2 \text{ eV}$
2. $+2.55 \text{ eV}$
3. $-2.55 \text{ eV}$
4. $-5.1 \text{ eV}$

Solution:

$\text{Na} \rightarrow \text{Na}^+ + \text{e}^-; \ (\Delta H)_{\text{IE}} = +5.1 \text{ eV}$ $\text{On reversing, (By Lavoiser – Laplace law)}$ $\text{Na}^+ + \text{e}^- \rightarrow \text{Na}; \ (\Delta H)_{\text{eg}} = -5.1 \text{ eV}$

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
}