Import Question JSON

Current Question (ID: 17661)

Question:

$\text{The compound } \text{C}_7\text{H}_8 \text{ undergoes the following reactions}$ $\text{C}_7\text{H}_8 \xrightarrow{3 \text{Cl}_2 / \text{hv}} \text{A} \xrightarrow{\text{Br}_2 / \text{Fe}} \text{B} \xrightarrow{\text{Zn / HCl}} \text{C}$ $\text{The product 'C' is-}$

Options:

1. $\text{m-Bromotoluene}$
2. $\text{o-Bromotoluene}$
3. $\text{3-Bromo-2,4,6-trichlorotoluene}$
4. $\text{p-Bromotoluene}$

Solution:

$\text{Hint: First reaction is a free radical substitution reaction}$ $\text{The first reaction is an example of a free radical substitution reaction. The Cl}_2 \text{ is taken in excess thus all the hydrogen from CH}_3 \text{ group is replaced by Cl atom. In the second step, an electrophilic aromatic substitution reaction takes place.}$ $\text{The CCl}_3 \text{ is an electron-withdrawing group and meta directing. Thus, bromination occurs at the meta position. In the first step, reduction takes place.}$ $\text{The overall reaction is as follows:}$ $\text{CH}_3 \xrightarrow{3\text{Cl}_2/\text{hv}} \text{CCl}_3 \xrightarrow{\text{Br}_2/\text{Fe}} \text{CCl}_3 \xrightarrow{\text{Zn-HCl}} \text{CH}_3 \text{Br}$ $\text{m-Bromo toluene}$

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
}