Import Question JSON

Current Question (ID: 20933)

Question:

$\text{Select the correct order of magnitudes of the first electron gain enthalpy from the options provided:}$

Options:

1. $\text{Cl} < \text{F}$
2. $\text{O} < \text{S}$
3. $\text{Te} < \text{O}$
4. $\text{S} < \text{Se}$

Solution:

$\Delta H_{\text{ege}} \text{ decreases down the group due to decrease in } Z_{\text{eff}}$ $\Delta H_{\text{ege}} \text{ also decreases due to interelectronic repulsions.}$ $\text{Therefore, the expected order in case of Group-16 elements is } \text{O} > \text{S} > \text{Se} > \text{Te}$ $\text{but due to interelectronic repulsions in O the actual order becomes } \text{S} > \text{Se} > \text{Te} > \text{O}.$ $\text{The expected order in case of Group-17 elements is } \text{F} > \text{Cl} > \text{Br} > \text{I}$ $\text{but due to interelectronic repulsions in F the actual order becomes } \text{Cl} > \text{F} > \text{Br} > \text{I}.$

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
}