Import Question JSON

Current Question (ID: 10630)

Question:

$\text{A chemical that depletes the ozone layer is:}$

Options:

1. $\text{Sulphur}$
2. $\text{Chlorofluorocarbons (CFCs)}$ (Correct)
3. $\text{Nitrogen}$
4. $\text{Hydrogen}$

Solution:

$\text{HINT: Chlorine initiates the breakdown of ozone.}$ $\text{Explanation:}$ $\text{STEP 1: Freons or chlorofluorocarbons (CFCs) are aerosols that accelerate the depletion of ozone.}$ $\text{In the presence of ultraviolet radiations, molecules of CFCs break down to form chlorine-free radicals that combine with ozone to form oxygen.}$ $\text{STEP 2: The following reaction displays how Cl atoms have an ozone-destroying cycle:}$ $\text{Cl} + \text{O}_3 \rightarrow \text{ClO} + \text{O}_2 \quad \text{(Step 1)}$ $\text{ClO} + \text{O} \rightarrow \text{Cl} + \text{O}_2 \quad \text{(Step 2)}$ $\text{O}_3 + \text{O} \rightarrow 2\text{O}_2 \quad \text{(Overall reaction)}$

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
}