Import Question JSON

Current Question (ID: 20951)

Question:

$\text{The isostructural pairs among the following are:}$ $\text{A. } \text{SO}_4^{2-} \text{ and } \text{CrO}_4^{2-}$ $\text{B. } \text{SiCl}_4 \text{ and } \text{TiCl}_4$ $\text{C. } \text{NH}_3 \text{ and } \text{NO}_3^{-}$ $\text{D. } \text{BCl}_3 \text{ and } \text{BrCl}_3$

Options:

1. $\text{C and D only}$
2. $\text{A and B only}$
3. $\text{A and C only}$
4. $\text{B and C only}$

Solution:

$\text{Hint: Isostructural species has same hybridization and shape}$ $\text{Isostructural species are those species in which central atom has}$ $\text{same hybridization and species has same shape.}$ $1. \text{ } \text{SO}_4^{2-} : \text{Tetrahedral}$ $\text{CrO}_4^{2-} : \text{Tetrahedral}$ $\text{Both have same shape and hybridization is } \text{sp}^3$ $2. \text{ } \text{SiCl}_4 : \text{Tetrahedral}$ $\text{TiCl}_4 : \text{Tetrahedral}$ $3. \text{ } \text{NH}_3 : \text{Triagonal pyramidal}$ $\text{NO}_3^{-} : \text{Triagonal planar}$ $4. \text{ } \text{BCl}_3 : \text{Triagonal planar}$ $\text{BrCl}_3 : \text{T-shape}$

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
}