Import Question JSON

Current Question (ID: 20935)

Question:

$\text{Arrange the following elements in decreasing order of their electron gain enthalpy (magnitude only):}$ $\bullet \ \text{Sulfur} \rightarrow \text{A}$ $\bullet \ \text{Bromine} \rightarrow \text{B}$ $\bullet \ \text{Fluorine} \rightarrow \text{C}$ $\bullet \ \text{Argon} \rightarrow \text{D}$

Options:

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

Solution:

$\text{Hint: Electron gain enthalpy is the energy released when a gaseous atom gains an electron.}$ $\text{Electron gain enthalpy values in KJ/mol}$ $\text{S} = -200$ $\text{Br} = -325$ $\text{F} = -333$ $\text{Ar} = -96$ $\text{The correct answer is C>B>A>D}$ $(\text{Magnitude only}) \ 333 > 325 > 200 > 96$

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
}