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Current Question (ID: 8024)

Question:

The compound that has the highest ionic character associated with the X-Cl bond is:

Options:

1. $PCl_5$
2. $BCl_3$
3. $CCl_4$
4. $SiCl_4$

Solution:

$\text{HINT: Ionic character } \propto \text{ Electronegativity difference}\n\n\text{Explanation:}\n\n\text{STEP 1:}\n\n\text{Electronegativity values of elements are:}\n\n\begin{tabular}{|l|l|}\n\hline\n\text{Element} & \text{Electronegativity} \\\n\hline\n\text{Phosphorous} & 2.19 \\\n\hline\n\text{Boron} & 2.04 \\\n\hline\n\text{Carbon} & 2.55 \\\n\hline\n\text{Silicon} & 1.90 \\\n\hline\n\text{Chlorine} & 3.16 \\\n\hline\n\end{tabular}\n\n\text{STEP 2:}\n\n\text{In } SiCl_4\text{, the difference between the electronegativity of Si (1.90) and chlorine (3.16) is higher than in other given compounds.}\n\n\text{For } PCl_5\text{, difference} = |3.16 - 2.19| = 0.97\n\text{For } BCl_3\text{, difference} = |3.16 - 2.04| = 1.12\n\text{For } CCl_4\text{, difference} = |3.16 - 2.55| = 0.61\n\text{For } SiCl_4\text{, difference} = |3.16 - 1.90| = 1.26\n\n\text{So, the highest ionic character is associated with the Si-Cl bond.}\n\n\text{Therefore, } SiCl_4 \text{ has the highest ionic character.}$

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
}