Import Question JSON

Current Question (ID: 18516)

Question:

$\text{During the process of electrolytic refining of copper, metals that are present as impurities and settle as anode mud are:}$

Options:

1. $\text{Ag, and Au}$
2. $\text{Pb, and Zn}$
3. $\text{Fe, and Ni}$
4. $\text{Sn, and Ag}$

Solution:

$\text{Hint: Anode mud is a deposit formed after the electrolysis and is a residue from the anode.}$ $\text{Explanation:}$ $\text{Step 1: During the process of electrolytic refining of copper, Ag, and Au present as an impurity in impure copper, settle as anode mud.}$ $\text{A deposit of insoluble residue formed from the dissolution of the anode in commercial electrolysis.}$ $\text{Sometimes called anode slime. In copper refining, this slime contains the precious metals that are recovered from it.}$ $\text{Step 2: The anode mud contains antimony, selenium, tellurium, silver, gold, and platinum.}$

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
}