Import Question JSON

Current Question (ID: 10577)

Question:

$\text{Bismuth is present in a +5 oxidation state in:}$

Options:

1. $\text{Bi}_2\text{O}_5$
2. $\text{BiF}_5$ (Correct)
3. $\text{BiCl}_5$
4. $\text{Bi}_2\text{S}_5$

Solution:

$\text{HINT: Bi is more stable in +5 oxidation state in } \text{BiF}_5$ $\text{EXPLANATION:}$ $\text{Stability of +5 oxidation state decreases top to bottom and +3 oxidation state increases top to bottom due to inert pair effect.}$ $\text{Meanwhile compound having +5 oxidation state of Bi is } \text{BiF}_5\text{. It is due to smaller size and high electronegativity of fluorine. Fluorine is a strong oxidizing agent and hence oxidizes bismuth to the highest oxidation state.}$ $\text{For this reason } \text{BiF}_5 \text{ exists but } \text{Bi}_2\text{O}_5 \text{ doesn't exist.}$

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
}