Import Question JSON

Current Question (ID: 21210)

Question:

$\text{The correct order of bond strength of}$ $\text{C-C, Si-Si, Ge-Ge, Sn-Sn is:}$

Options:

1. $\text{C-C} > \text{Si-Si} > \text{Ge-Ge} > \text{Sn-Sn}$
2. $\text{C-C} > \text{Si-Si} > \text{Ge-Ge} \approx \text{Sn-Sn}$
3. $\text{C-C} > \text{Si-Si} < \text{Ge-Ge} < \text{Sn-Sn}$
4. $\text{C-C} > \text{Si-Si} > \text{Sn-Sn} > \text{Ge-Ge}$

Solution:

$\text{For covalent molecules, bond energy generally depends upon}$ $\text{electronegativity and bond length, which states that bond energy is}$ $\text{directly proportional to electronegativity and inversely proportional to}$ $\text{bond length.}$ $\text{As we go down, the group size increases as the distance between the}$ $\text{atoms increases, and the bond strength decreases.}$ $\text{So, the bond strength order will be:}$ $\text{C-C} = 346 \text{ kJ/mol}$ $\text{Si-Si} = 340$ $\text{Ge-Ge} = 274$ $\text{Sn-Sn} =$ $\text{Thus, option 1 is the correct answer.}$

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
}