Import Question JSON

Current Question (ID: 20916)

Question:

$\text{The set that contains atomic numbers of only transition elements is:}$

Options:

1. $21, 32, 53, 64$
2. $9, 17, 34, 38$
3. $21, 25, 42, 72$
4. $37, 42, 50, 64$

Solution:

$\text{Hint: The 3d series start with Scandium (21) and ended in zinc (30)}$ $\text{d-Block elements are called transition elements. These are the elements of Group 3 to 12.}$ $\text{The 3d series start with Scandium (21) and ended in zinc (30)}$ $\text{The 4d series start with yttrium (39) and ended with cadmium (48)}$ $\text{The 5d series start with hafnium (72) and ended with mercury (80)}$ $\text{The set that contains atomic numbers of only transition elements is 21, 25, 42, 72.}$

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
}