Import Question JSON

Current Question (ID: 10692)

Question:

$\text{Which of the following compound does not exist?}$

Options:

1. $\text{XeOF}_4$
2. $\text{NeF}_2$ (Correct)
3. $\text{XeF}_2$
4. $\text{XeF}_6$

Solution:

$\text{HINT: NeF}_2 \text{ does not exist.}$ $\text{Explanation:}$ $\text{STEP 1: The general valence shell electronic configuration of noble gas elements is ns}^2 \text{np}^6 \text{ except He which is ns}^2$ $\text{Noble gases are inert due to very high ionization enthalpy.}$ $\text{They generally do not formed compound only Xe formed compound with high electronegative element like F and O.}$ $\text{STEP 2: NeF}_2\text{does not exist as it would require d orbital for bonding which Ne does not have as it belongs to period 2 and moreover a lot of energy would be used to excite the electrons to a higher energy level as the valence electrons are very close to the nucleus thus they experience strong electrostatic attraction.}$

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
}