Import Question JSON

Current Question (ID: 9196)

Question:

$\text{A metal [X] heating on nitrogen gas gives [Y]. [Y] on treatment with H}_2\text{O gives a colourless gas which when passed through CuSO}_4\text{ solution gives a blue colour. [Y] is-}$

Options:

1. $\text{Mg}(\text{NO}_3)_2$
2. $\text{Mg}_3\text{N}_2$
3. $\text{NaN}_3$
4. $\text{MgO}$

Solution:

\text{Hint: Mg gives Mg}_3\text{N}_2\text{ on direct reaction with N}_2 \text{Explanation:} \text{Mg}_3\text{N}_2\text{ on treatment with H}_2\text{O gives a colourless gas NH}_3\text{ which on reaction with CuSO}_4\text{ gives blue colour compound i.e. [Cu(NH}_3\text{)}_4\text{]SO}_4\text{. Hence, Y is Mg}_3\text{N}_2\text{.} \text{The reactions are as follows:} 3\text{Mg} + \text{N}_2 \xrightarrow{\Delta} \text{Mg}_3\text{N}_2 \text{Mg}_3\text{N}_2 + 6\text{H}_2\text{O} \rightarrow 3\text{Mg(OH)}_2 + 2\text{NH}_3\text{ (colourless gas)} \text{CuSO}_4 + 4\text{NH}_3 \rightarrow \text{[Cu(NH}_3\text{)}_4\text{]SO}_4\text{ (blue colour)}

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
}