Import Question JSON

Current Question (ID: 18480)

Question:

$\text{The fundamental principle of froth flotation process is:}$

Options:

1. $\text{Impurities and metal ore have different wetting properties.}$
2. $\text{Impurities and metal ore have different solubility.}$
3. $\text{Impurities and metal ore have different diversity.}$
4. $\text{Impurities and metal ore have different compressive powers.}$

Solution:

$\text{HINT: Mineral particles become wet by oils while the gangue particles by water.}$ $\text{Explanation:}$ $\text{Impurities are wetted by water while metal ores are wetted by oil.}$ $\text{This method is used for removing gangue from sulfide ores. In this process,}$ $\text{a suspension of the powdered ore is made with water. Collectors and froth}$ $\text{stabilizers are added to it.}$ $\text{Collectors (e.g., pine oils, fatty acids, xanthates, etc.) enhance the non-}$ $\text{wettability of the mineral particles and froth}$ $\text{stabilizers (e.g., cresols, aniline) stabilize the froth.}$

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
}