Import Question JSON

Current Question (ID: 8050)

Question:

$\text{AlCl}_3 + \text{Cl}^- \rightarrow \text{AlCl}_4^-$ $\text{The change in the hybridization of the Al atom in the above reaction is:}$

Options:

1. $sp^2 \text{ to } sp^3$ (Correct)
2. $sp^3 \text{ to } sp^2$
3. $sp^3 \text{ to } dsp^2$
4. $sp^2 \text{ to } dsp^2$

Solution:

$\text{HINT: } \text{AlCl}_4^- \text{ is } sp^3 \text{ hybridised.}$ $\text{Explanation:}$ $\text{The valence orbital picture of aluminium in the ground state can be represented as:}$ $\text{3s}^2 \quad \text{3p}$ $\text{The orbital picture of aluminium in the excited state can be represented as:}$ $\text{3s} \quad \text{3p}_x \text{3p}_y \text{3p}_z$ $\text{Hence, it undergoes } sp^2 \text{ hybridization to give a trigonal planar arrangement } (\text{AlCl}_3).$ $\text{To form } (\text{AlCl}_4^-) \text{ the empty } 3p_z \text{ orbital also gets involved and the hybridization changes from } sp^2 \text{ to } sp^3.$ $\text{As a result, the shape gets changed to tetrahedral.}$

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
}