Import Question JSON

Current Question (ID: 10668)

Question:

$\text{How can one obtain sulphur trioxide?}$

Options:

1. $\text{CaSO}_4 + \text{C} \xrightarrow{\Delta}$
2. $\text{Fe}_2(\text{SO}_4)_3 \xrightarrow{\Delta}$ (Correct)
3. $\text{S} + \text{H}_2\text{SO}_4 \xrightarrow{\Delta}$
4. $\text{H}_2\text{SO}_4 + \text{PCl}_5 \xrightarrow{\Delta}$

Solution:

$\text{Hint: Ferric sulphate generated sulphur trioxide on heating}$ $\text{By heating ferric sulphate strongly, sulphur trioxide is obtained as a product. The reaction is as follows:}$ $\text{Fe}_2(\text{SO}_4)_3 \xrightarrow{\Delta} \text{Fe}_2\text{O}_3 + 3\text{SO}_3$ $\text{The other reactions are as follows:}$ $\text{1. CaSO}_4 + \text{C} \xrightarrow{\Delta} \text{CaO} + \text{SO}_2 + \text{CO}$ $\text{2. S} + 2\text{H}_2\text{SO}_4 \xrightarrow{\Delta} 3\text{SO}_2 + 2\text{H}_2\text{O}$ $\text{3. H}_2\text{SO}_4 + \text{PCl}_5 \xrightarrow{\Delta} \text{SO}_3\text{HCl} + \text{POCl}_3 + \text{HCl}$ $\text{chloro sulphonic acid}$ $\text{Thus, SO}_3 \text{ is obtained by heating Fe}_2(\text{SO}_4)_3$

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
}