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Current Question (ID: 7880)

Question:

$\text{The electronic configuration of the most electropositive element is:}$

Options:

1. $[\text{He}]2\text{s}^1$
2. $[\text{Xe}]6\text{s}^1$ (Correct)
3. $[\text{He}]2\text{s}^2$
4. $[\text{Xe}]6\text{s}^2$

Solution:

$\text{HINT: First group element is more electropositive than second group element.}$\n\n$\text{Explanation:}$\n\n$\text{The given configuration are as follows:}$\n\n$[\text{He}] 2\text{s}^1 = \text{Li(3)}$\n\n$[\text{Xe}] 6\text{s}^1 = \text{Cs (55)}$\n\n$[\text{He}] 2\text{s}^2 = \text{Be (4)}$\n\n$[\text{Xe}] 6\text{s}^2 = \text{Ba (56)}$\n\n$\text{Both (1) and (2) represent the group I element, 3 and 4 represent the group II element. The group I element are more electropositive than group II element.}$\n\n$\text{Down the group electropositive character increases, hence, Cs is the most electropositive in nature.}$

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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
}