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Current Question (ID: 21349)

Question:

$\text{When a propane molecule undergoes chlorination under photochemical conditions, it gives two di-chloro products, } x \text{ and } y. \text{ Among these, } x \text{ is optically active. How many structural isomers of tri-chloro products will be obtained from } x \text{ when it is further treated with chlorine under photochemical conditions?}$ $1.\ 4$ $2.\ 2$ $3.\ 5$ $4.\ 3$

Options:

1. $4$
2. $2$
3. $5$
4. $3$

Solution:

$\text{Hint: } x \text{ is optically active, which means 1,2-dichloropropane.}$ $\text{X is } \text{CH}_3 - \overset{*}{\text{CH}} - \text{CH}_2 - \text{Cl}$ $\text{X } \overset{\text{Cl}_2}{\rightarrow} \overset{\text{hv}}{\rightarrow} \text{CH}_3 - \overset{*}{\text{CH}} - \text{CH} - \text{Cl} + \text{CH}_3 - \text{C} - \text{CH}_2 - \text{Cl}$ $\text{Cl} \hspace{1mm} \vert \hspace{1mm} \text{Cl}$ $+ \text{Cl} - \text{CH}_2 - \text{CH} - \text{CH}_2 - \text{Cl}$ $\text{Cl} \hspace{1mm} \vert \hspace{1mm} \text{Cl}$

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
}