Import Question JSON

Current Question (ID: 9217)

Question:

$\text{Sodium nitrate decomposes above 800°C and does not give:}$

Options:

1. $\text{N}_2$
2. $\text{O}_2$
3. $\text{NO}_2$
4. $\text{Na}_2\text{O}$

Solution:

\text{HINT: Sodium nitrate on decomposition does not give NO}_2 \text{Explanation:} \text{Li, Be, and Mg compounds are thermally unstable compounds.} \text{NaNO}_3 \text{ is a thermally stable compound that at higher temperatures decomposes.} \text{The higher the ionic character, the higher will be the stability.} \text{At 500°C and 800°C the decomposition reaction of sodium nitrate is as follows:} \text{At 500°C: } 2\text{NaNO}_3 \rightleftharpoons 2\text{NaNO}_2 + \text{O}_2 \text{At 800°C: } 4\text{NaNO}_3 \rightleftharpoons 2\text{Na}_2\text{O} + 5\text{O}_2 + 2\text{N}_2 \text{From the 800°C reaction, the products are Na}_2\text{O, O}_2\text{, and N}_2\text{. Therefore, sodium nitrate does not give NO}_2 \text{ when it decomposes above 800°C.}

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
}