Import Question JSON

Current Question (ID: 7885)

Question:

$\text{The screening effect of 'd' electrons is:}$

Options:

1. $\text{Much less than s-electrons.}$ (Correct)
2. $\text{Much more than s-electrons.}$
3. $\text{Equal to s-electrons.}$
4. $\text{Equal to p-electrons.}$

Solution:

$\text{HINT: Screening effect order for sub-shell is of a shell, s>p>d>f.}$ $\text{Explanation:}$ $\text{The screening effect or shielding effect is the phenomenon of reduction of nuclear force of attraction due to inner shell electrons towards valence electrons. The inner shell electrons protect the valence shell electrons from the nuclear force i.e. they shield them.}$ $\text{The correct order of screening effect is: s>p>d>f}$ $\text{Thus, the screening effect of 'd' electrons is much less than 's' electrons.}$

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
}