Import Question JSON

Current Question (ID: 18477)

Question:

$\text{Among the following an iron mineral is:}$

Options:

1. $\text{Malachite}$
2. $\text{Cassiterite}$
3. $\text{Pyrolusite}$
4. $\text{Magnetite}$

Solution:

$\text{HINT: Magnetite is a mineral of iron.}$ $\text{Explanation:}$ $\text{Iron ores are rocks and minerals from which metallic iron can be extracted.}$ $\text{The formula of given ore is as follows:}$ $\begin{array}{|c|c|} \hline \text{Mineral} & \text{Chemical composition} \\ \hline \text{Malachite} & \text{CuCO}_3 \cdot \text{Cu(OH)}_2 \\ \text{Cassiterite} & \text{SnO}_2 \\ \text{Pyrolusite} & \text{MnO}_2 \\ \text{Magnetite} & \text{Fe}_3\text{O}_4 \\ \hline \end{array}$

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
}