Import Question JSON

Current Question (ID: 8421)

Question:

\text{(a) } \mathrm{Cl_2(g)} \rightleftharpoons 2\mathrm{Cl(g)} ; K_c = 5.0 \times 10^{-39} \text{ mol/L} \text{(b) } \mathrm{Cl_2(g)} + 2\mathrm{NO(g)} \rightleftharpoons 2\mathrm{NOCl(g)} ; K_c = 3.7 \times 10^8 \text{ mol/L} \text{(c) } \mathrm{Cl_2(g)} + 2\mathrm{NO_2(g)} \rightleftharpoons 2\mathrm{NO_2Cl(g)} ; K_c = 1.8 \text{ mol/L} \text{In which of the reactions given above, will there be an appreciable concentration of both reactant(s) and product(s)?}

Options:

1. $\text{Only reaction (a)}$
2. $\text{Both reactions (a) and (b)}$
3. $\text{Only reaction (c)}$
4. $\text{Only reaction (b)}$

Solution:

$\text{Hint: Value of } K_c \text{ indicate the extent of reaction}$ $\text{Explanation:}$ $\text{If the value of } K_c \text{ lies between } 10^{-3} \text{ and } 10^3; \text{ a reaction has an appreciable concentration of reactants and products. Thus, the reaction given in (c) will have an appreciable concentration of reactants and products.}$

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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
}