Import Question JSON

Current Question (ID: 20969)

Question:

$\text{Which of the following compounds exhibits the highest covalent character?}$

Options:

1. $\text{FeCl}_2$
2. $\text{SnCl}_2$
3. $\text{AlCl}_3$
4. $\text{MgCl}_2$

Solution:

$\text{Hint: Covalent character is directly proportional to the charge on the cation.}$ $\text{Explanation:}$ $\text{According to the Fajan's rule, cations with greater charge and smaller size favor covalency. If the anion present in the compound is the same then as the cation charge increases, the covalent character also increases. Fe is present in a +2 oxidation state, Sn oxidation state is +2, Mg oxidation state is +2, and Al oxidation state is +3.}$ $\text{Thus, AlCl}_3 \text{ will show maximum covalent character because Al has the maximum positive charge.}$ $\text{The correct answer is option 3.}$

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
}