Import Question JSON

Current Question (ID: 10702)

Question:

$\text{Which of the following statement is false?}$

Options:

1. $\text{Liquid helium is used as a cryogenic liquid.}$
2. $\text{XeO}_3 \text{ has four } \sigma \text{ and four } \pi\text{-bonds.}$ (Correct)
3. $\text{The hybridisation of Xe in XeF}_4 \text{ is } sp^3d^2\text{.}$
4. $\text{Among noble gases, the occurrence of argon is highest in air.}$

Solution:

$\text{Hint: Structure and hybridization of xenon compounds.}$ $\text{XeO}_3 \text{ has three double bonds and each double bond has } 1\sigma \text{ and } 1\pi \text{ bonds. Hence, a total number of bonds are } 3\sigma \text{ and } 3\pi \text{ bonds. The structure is as follows:}$ $\text{Liquid helium, because of its low boiling point, is used in many cryogenic systems when temperatures below the boiling point of nitrogen are needed.}$ $\text{Argon is the third-most abundant gas in the Earth's atmosphere, at 0.934\% ...}$ $\text{The hybridization of Xe in } \text{XeF}_4 \text{ is } sp^3d^2\text{. The geometry is octahedral. Hence it is correct.}$ $\text{The correct answer is option two.}$

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
}