Import Question JSON

Current Question (ID: 21569)

Question:

$\text{Calculate the Bohr Magneton (B.M.) value for the compound with the least oxidizing ability in the following list:}$ $[\text{VO}_2^+, \text{MnO}_4^-, \text{and Cr}_2\text{O}_7^{2-}]$

Options:

1. $2$
2. $0$
3. $1$
4. $6$

Solution:

$\text{Hint: } \mu = \sqrt{n(n+2)}$ $\text{For 3-d transition series,}$ $\text{Oxidizing power } \text{V}^{+5} < \text{Cr}^{+6} < \text{Mn}^{-7}$ $\mu_{\text{spin}} \text{ of V}^{+5}:$ $\text{V}^{+5} \rightarrow [\text{Ar}]4s^03d^0$ $\text{Number of unpaired e}^- = 0$ $\mu_{\text{spin}} = 0$

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
}