Import Question JSON

Current Question (ID: 10889)

Question:

$\text{The most stable conformation of n-butane among the following is:}$

Options:

1. $\text{Newman projection showing two CH}_3 \text{ groups in gauche position}$
2. $\text{Newman projection showing two CH}_3 \text{ groups in anti position}$ (Correct)
3. $\text{Newman projection showing two CH}_3 \text{ groups in eclipsed position}$
4. $\text{Newman projection showing one CH}_3 \text{ group eclipsed with H}$

Solution:

$\text{Hint: Anti is the most stable conformation}$ $\text{The most stable conformation is the one in which the force of repulsion is weakest and the heavier groups are present at the maximum possible distances.}$ $\text{Therefore in anti-conformation, the two bulkier groups (i.e., CH}_3 \text{ group) are present at a maximum possible distance and 180}^\circ \text{ to each other. Thus, it is the most stable conformation.}$

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
}