Import Question JSON

Current Question (ID: 20879)

Question:

$\text{The correct set of four quantum numbers for the valence electrons of rubidium atom (Z = 37) is -}$

Options:

1. $5, 1, 0 + \frac{1}{2}$
2. $5, 1, 1 + \frac{1}{2}$
3. $5, 0, 1 + \frac{1}{2}$
4. $5, 0, 0 + \frac{1}{2}$

Solution:

$\text{Hint: Rubidium is first group and 5th period element}$ $\text{Rubidium is a s-block element. The electronic configuration of rubidium (Z = 37) is as follows:}$ $1s^22s^22p^63s^23p^63d^{10}4s^24p^65s^1$ $\text{The last electron present in 5s orbital hence, the set of four quantum numbers for the valence electrons of rubidium atom is}$ $\therefore n = 5 \quad \ell = 0 \quad m = 0 \quad m_s = +\frac{1}{2}$

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
}