Import Question JSON

Current Question (ID: 8048)

Question:

A pair of species that have identical shapes is :

Options:

1. $\text{NO}_2^+$ and $\text{NO}_2^-$
2. $\text{PCl}_5$ and $\text{BrF}_5$
3. $\text{XeF}_4$ and $\text{ICl}_4^-$
4. $\text{TeCl}_4$ and $\text{XeO}_4$

Solution:

XeF4 and ICl4^- have identical shapes. Explanation: According to VSEPR Theory, the shape of a molecule depends on the number of bonding pairs and lone pairs of electrons around the central atom. 1. NO2^+: Linear shape NO2^-: Bent shape Not identical shapes. 2. PCl5: Trigonal bipyramidal shape BrF5: Square pyramidal shape Not identical shapes. 3. XeF4: Square planar shape ICl4^-: Square planar shape Identical shapes. 4. TeCl4: See-saw shape XeO4: Tetrahedral shape Not identical shapes. Thus, XeF4 and ICl4^- have identical shapes (Square planar).

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
}