Import Question JSON

Current Question (ID: 10632)

Question:

$\text{The catalyst that is used in the contact process is:}$

Options:

1. $\text{Fe}_2\text{O}_3$
2. $\text{Al}_2\text{O}_3$
3. $\text{V}_2\text{O}_5$ (Correct)
4. $\text{SO}_3$

Solution:

$\text{HINT: } \text{V}_2\text{O}_5 \text{ is the catalyst in contact process.}$ $\text{Explanation:}$ $\text{STEP 1: A catalyst is a substance that speeds up a chemical reaction, but is not consumed by the reaction.}$ $\text{The contact process is the method to produce sulfuric acid in the high concentrations needed for industrial processes.}$ $\text{STEP 2: In this process vanadium(V) oxide, Vanadium(III) oxide (}\text{V}_2\text{O}_5\text{, V}_2\text{O}_3\text{) is preferred as catalyst.}$ $\text{Vanadium(V) oxide serves the crucial purpose of catalysing the mildly exothermic oxidation of sulfur dioxide to sulfur trioxide by air in the contact process: } 2\text{SO}_2 + \text{O}_2 \rightleftharpoons 2\text{SO}_3$

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
}