Import Question JSON

Current Question (ID: 10569)

Question:

$\text{Lead nitrate upon heating gives:}$

Options:

1. $\text{N}_2\text{O, PbO}$
2. $\text{NO}_2\text{, PbO}$ (Correct)
3. $\text{NO, PbO}$
4. $\text{NO, PbO}_2$

Solution:

$\text{HINT- Brown fumes of } \text{NO}_2 \text{ will be formed.}$ $\text{Explanation:}$ $\text{A decomposition reaction can be defined as a type of chemical reaction in which under suitable conditions, one single compound splits into multiple simpler substances.}$ $\text{Where lead(II) nitrate undergo decomposition reaction to give yellow colour lead (II) oxide, colourless gas of oxygen and brown colour nitrogen dioxide.}$ $\text{The reaction is: } 2\text{Pb}(\text{NO}_3)_2 \xrightarrow{\Delta} 4\text{NO}_2 + 2\text{PbO} + \text{O}_2$

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
}