Import Question JSON

Current Question (ID: 9147)

Question:

$\text{KO}_2 \text{ is used in oxygen cylinders in space aircraft and submarines because it :}$

Options:

1. $\text{Absorbs } \text{CO}_2 \text{ and increases } \text{O}_2 \text{ content.}$
2. $\text{Eliminates moisture.}$
3. $\text{Absorbs } \text{CO}_2$
4. $\text{Produces } \text{O}_2$

Solution:

\text{HINT: KO}_2 \text{ reacts with CO}_2 \text{Explanation: By reacting with moisture carried in an airflow, KO}_2 \text{ releases oxygen and absorbs carbon dioxide. Thus, it is used in oxygen cylinders in space aircraft and submarines. The reaction is as follows:} 2\text{KO}_2 + \text{CO}_2 \rightarrow \text{K}_2\text{CO}_3 + \frac{3}{2}\text{O}_2

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
}