Import Question JSON

Current Question (ID: 20988)

Question:

$\text{Which of the following compound(s) is/are paramagnetic in nature?}$ $\text{(a) NO}_2$ $\text{(b) NO}$ $\text{(c) K}_2\text{O}$ $\text{(d) Na}_2\text{O}_2$

Options:

1. $(a) \& (b) \text{ only}$
2. $(a), (b) \& (c) \text{ only}$
3. $(a), (b), (c) \& (d)$
4. $(a), (b) \& (d) \text{ only}$

Solution:

$\text{Paramagnetic species contain unpaired electrons,}$ $\text{only NO}_2 \text{ and NO are having unpaired electrons in their MO diagrams.}$ $\text{NO}_2: \quad \overset{\text{Unpaired } e^-}{\text{O} \rightarrow \text{N} \rightarrow \text{O}}$ $\text{NO}: \quad (N_e = 15)$ $\text{1 Unpaired electron as per MOT.}$

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
}