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Current Question (ID: 10826)

Question:

$\text{The enolic form of an acetone contains:}$

Options:

1. $9 \text{ sigma bonds, } 1 \text{ pi bond, and } 2 \text{ lone pairs of electrons}$ (Correct)
2. $8 \text{ sigma bonds, } 2 \text{ pi bonds, and } 2 \text{ lone pairs of electrons}$
3. $10 \text{ sigma bonds, } 1 \text{ pi bond, and } 1 \text{ lone pair of electrons}$
4. $9 \text{ sigma bonds, } 2 \text{ pi bonds, and } 1 \text{ lone pair of electrons}$

Solution:

$\text{Hint: Acetone is } \text{H}_3\text{C}-\text{CO}-\text{CH}_3$ $\text{The enolic form of acetone is as follows:}$ $\text{Keto form: } \text{CH}_2-\text{C}(=\text{O})-\text{CH}_3 \text{ with H below CH}_2$ $\text{Enol form: } \text{CH}_2=\text{C}(\text{OH})-\text{CH}_3$ $\text{In enolic form, 9 sigma bonds are present, 1 pi bond is present and oxygen atom has two pairs of electrons.}$

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
}