Import Question JSON

Current Question (ID: 18392)

Question:

$\text{Adsorbent can be activated by:}$

Options:

1. $\text{Increasing the surface area of the adsorbent.}$
2. $\text{Breaking adsorbent into smaller pieces or powdering it.}$
3. $\text{Both (1) and (2)}$
4. $\text{None of the above.}$

Solution:

$\text{By activating an adsorbent, we tend to increase the adsorbing power of the adsorbent.}$ $\text{Some ways to activate an adsorbent are:}$ $\text{(i) By increasing the surface area of the adsorbent. This can be done by breaking it into smaller pieces or powdering it.}$ $\text{(ii) Some specific treatments can also lead to the activation of the adsorbent. For example, wood charcoal is activated by heating it between 650 \text{ K} \text{ and } 1330 \text{ K} \text{ in vacuum or air. It expels all the gases absorbed or adsorbed and thus, creates a space for adsorption of gases.}}$

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
}