Import Question JSON

Current Question (ID: 8025)

Question:

The correct relationship for the bond angle of water and dimethyl ether $(\text{CH}_3 - \ddot{\text{O}} - \text{CH}_3)$ is:

Options:

1. Water $>$ Dimethyl ether
2. Dimethyl ether $>$ Water (Correct)
3. Dimethyl ether $=$ Water
4. Cannot be determined.

Solution:

$\text{HINT: Bulky groups increases the bond angle.}\n\n\text{Explanation:}\n\n\text{Dimethyl ether has a greater bond angle than that of water, however, in both the molecules central atom is } sp^3 \text{ hybridized with two lone pairs.}\n\n\text{In dimethyl ether, the bond angle is greater due to the greater repulsive interaction between the two bulky alkyl (methyl) groups than that between two H-atoms.}\n\n\text{Water bond angle is approximately } 104.5^\circ \text{ and Dimethyl ether bond angle is } 111.7^\circ.\n\n\text{Therefore, Dimethyl ether } > \text{ Water.}\n\n\text{Actually, the C of } CH_3 \text{ group is attached to three H-atoms through } \sigma\text{-bonds.}\n\n\text{These three C-H bond pair of electrons increases the electronic charge density on the carbon atom.}$

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
}