Import Question JSON

Current Question (ID: 9143)

Question:

$\text{The correct statement(s) about the structure of } \text{BeCl}_2 \text{ is -}$ $\text{a. } \text{BeCl}_2 \text{ (solid)- exists as polymer.}$ $\text{b. } \text{BeCl}_2 \text{ (vapour)- exists as chlorobridged dimer.}$ $\text{c. } \text{BeCl}_2 \text{ has bent structure in the vapour phase.}$

Options:

1. $\text{a}$
2. $\text{a and b}$
3. $\text{b}$

Solution:

$\text{Hint: } \text{BeCl}_2 \text{ exist in solid as well as vapour state.}$ $\text{Explanation:}$ $\text{Step 1: (i) Structure of } \text{BeCl}_2 \text{ (solid)}$ $\text{BeCl}_2 \text{ exists as a polymer in the condensed (solid) phase.}$ $\text{(ii) In the vapour state, } \text{BeCl}_2 \text{ exists as a chlorobridged dimer}$ $\text{Therefore, both statements a and b are correct.}$

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
}