Import Question JSON

Current Question (ID: 10832)

Question:

$\text{The Cl - C - Cl angles in 1,1,2,2-tetrachloroethene and tetrachloromethane will be about :}$

Options:

1. $120^\circ \text{ and } 109.5^\circ$ (Correct)
2. $90^\circ \text{ and } 109.5^\circ$
3. $109.5^\circ \text{ and } 90^\circ$
4. $109.5^\circ \text{ and } 120^\circ$

Solution:

$\text{Hint: Bond angle depends on hybridization}$ $\text{The structure of given compounds are as follows:}$ $\text{1,1,2,2-tetrachloroethene has a C=C double bond where each carbon is sp}^2 \text{ hybridized. Tetrachloromethane (CCl}_4\text{) has a central carbon that is sp}^3 \text{ hybridized.}$ $\text{The sp}^2 \text{ carbon bond angle is 120}^\circ \text{ and sp}^3 \text{ carbon bond angle is 109}^\circ\text{28}'.$ $\text{Therefore, the Cl-C-Cl angle in 1,1,2,2-tetrachloroethene is 120}^\circ \text{ and in tetrachloromethane is 109.5}^\circ\text{.}$

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
}