Import Question JSON

Current Question (ID: 10927)

Question:

$\text{The aromatic compound among the following is:}$

Options:

1. $\text{Cyclohexadienyl anion (6-membered ring with negative charge)}$
2. $\text{Cyclobutadiene (4-membered ring)}$
3. $\text{Cyclopentenyl cation (5-membered ring with positive charge)}$
4. $\text{Cyclopentadienyl anion (5-membered ring with negative charge)}$ (Correct)

Solution:

$\text{The anion mentioned in option 4 is an aromatic system because it follows certain rules.}$ $\text{The cyclopentadienyl anion has 6 } \pi \text{ electrons in a delocalized state. So, it is aromatic.}$ $\text{The abstraction of a proton (H}^+\text{) from the sp}^3\text{-hybridized ring carbon yields the cyclopentadienyl anion. The hybridization of the sp}^3\text{-hybridized ring carbon is consequently altered to sp}^2\text{, as well.}$ $\text{The cyclic cyclopentadienyl anion is planar, it possesses a cyclic uninterrupted } \pi \text{ electron cloud, and it meets Hückel's rule, as it has } 4 \times 1 + 2 = 6 \pi \text{ electrons}$ $\text{Hence, it follows Hückel rule.}$

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
}