Import Question JSON

Current Question (ID: 10925)

Question:

$\text{The compound that is most difficult to protonate is:}$

Options:

1. $\text{Ph-O-H (Phenol)}$ (Correct)
2. $\text{H-O-H (Water)}$
3. $\text{H}_3\text{C-O-H (Methanol)}$
4. $\text{H}_3\text{C-O-CH}_3\text{ (Dimethyl ether)}$

Solution:

$\text{HINT: Conjugation of lone pair makes it difficult to protonate}$ $\text{EXPLANATION:}$ $\text{In Phenol, the lone pair on O-atom is delocalised due to conjugation with the benzene ring, making phenol less basic than aliphatic alcohols.}$ $\text{When a compound is less basic, it is more difficult to protonate because the oxygen atom has reduced electron density available for bonding with a proton.}$ $\text{The conjugation effect in phenol makes the lone pairs on oxygen less available for protonation compared to the other compounds listed.}$

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
}