Import Question JSON

Current Question (ID: 8584)

Question:

$ \text{The oxidation number of P in Mg}_2\text{P}_2\text{O}_7 \text{ is -} $

Options:

1. $ +3 $
2. $ +2 $
3. $ +5 $
4. $ -3 $

Solution:

\text{In } \text{Mg}_2\text{P}_2\text{O}_7\text{:} \\ \text{The oxidation number of Mg is +2.} \\ \text{The oxidation number of O is -2.} \\ \text{Let the oxidation number of P be } x. \\ \text{The sum of the oxidation numbers in a neutral compound is 0.} \\ (2 \times +2) + (2 \times x) + (7 \times -2) = 0 \\ 4 + 2x - 14 = 0 \\ 2x - 10 = 0 \\ 2x = 10 \\ x = \frac{10}{2} \\ x = +5 \\ \text{Therefore, the oxidation number of P in } \text{Mg}_2\text{P}_2\text{O}_7 \text{ is +5.}

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
}