Import Question JSON

Current Question (ID: 9125)

Question:

$\text{Sodium does not form Na}^{2+} \text{ because:}$

Options:

1. $\text{Sodium contains only one electron in its outermost shell}$
2. $\text{First ionization potential is small and the difference in first and second ionization potential is very large.}$
3. $\text{Radius of Na}^{2+} \text{ is much smaller than of Na}^+$
4. $\text{None of the above.}$

Solution:

$\textbf{HINT:} \text{ After losing one electron sodium ion gets noble gas configuration}$ $\textbf{Explanation:}$ $\text{Sodium forms Na}^+ \text{ ion but it does not form Na}^{2+} \text{ because of the low value of (IE)}_1 \text{ and high value of (IE)}_2\text{.}$ $\text{Sodium has one valence electron. Sodium forms Na}^+ \text{ ion by losing its valence electron and attains the stable electronic configuration of Ne with a completed octet.}$ $\text{This requires less energy. The removal of the second electron will break this stable electronic configuration and requires high energy.}$

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
}