Import Question JSON

Current Question (ID: 21529)

Question:

$\text{In a mildly alkaline medium, thiosulphate ion is oxidized by } \text{MnO}_4^- \text{ to } 'A'. \text{ The oxidation state of sulphur in } 'A' \text{ is:}$

Options:

1. $+4$
2. $+2$
3. $-2$
4. $+6$

Solution:

$\text{The reaction of thiosulphate with } \text{MnO}_4^- \text{ is:}$ $\text{MnO}_4^- + \text{S}_2\text{O}_3^{2-} \rightarrow \text{MnO}_2 + \text{SO}_4^{2-}$ $\text{Compound A is sulphate.}$ $\text{The oxidation state of 'S' in } \text{SO}_4^{2-} = +6$ $\text{Hence, option 4 is correct answer.}$

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
}