Import Question JSON

Current Question (ID: 21235)

Question:

$\text{Match the following:}$ $\begin{array}{|c|c|} \hline \text{Test/Method} & \text{Reagent} \\ \hline (i) \text{ Lucas Test} & (a) \text{C}_6\text{H}_5\text{SO}_2\text{Cl} / \text{aq. KOH} \\ (ii) \text{ Dumas method} & (b) \text{HNO}_3 / \text{AgNO}_3 \\ (iii) \text{ Kjeldahl's method} & (c) \text{CuO} / \text{CO}_2 \\ (iv) \text{ Hinsberg Test} & (d) \text{Conc. HCl and ZnCl}_2 \\ & (e) \text{H}_2\text{SO}_4 \\ \hline \end{array}$

Options:

1. $(i)-(d), (ii)-(c), (iii)-(e), (iv)-(a)$
2. $(i)-(b), (ii)-(d), (iii)-(e), (iv)-(a)$
3. $(i)-(d), (ii)-(c), (iii)-(b), (iv)-(e)$
4. $(i)-(b), (ii)-(a), (iii)-(c), (iv)-(d)$

Solution:

$\text{Hint: Kjeldahl's method sulphuric acid is used as a reagent.}$ $\text{Test with their reagent is as follows:}$ $\begin{array}{|c|c|} \hline \text{Test} & \text{Correct reagent} \\ \hline (i) \text{ Lucas test} & \rightarrow \text{conc. HCl + ZnCl}_2 \\ (ii) \text{ Dumas method} & \rightarrow \text{CuO} / \text{CO}_2 \\ (iii) \text{ Kjeldahl's method} & \rightarrow \text{H}_2\text{SO}_4 \\ (iv) \text{ Hinsberg Test} & \rightarrow \text{C}_6\text{H}_5\text{SO}_2\text{Cl} + \text{aq. KOH} \\ \hline \end{array}$

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
}