Import Question JSON

Current Question (ID: 18022)

Question:

$\text{The insoluble compound in water is /are:}$

Options:

1. $\text{Phenol}$
2. $\text{Formic acid and toluene}$
3. $\text{Phenol and toluene}$
4. $\text{Toluene and chloroform}$

Solution:

$\text{HINT: Like dissolves like.}$ $\text{Explanation:}$ $\text{(i) Phenol (C}_6\text{H}_5\text{OH) has the polar group –OH and non-polar group –C}_6\text{H}_5\text{. Thus, phenol is partially soluble in water.}$ $\text{(ii) Toluene (C}_6\text{H}_5\text{-CH}_3\text{) has no polar groups. Thus, toluene is insoluble in water.}$ $\text{(iii) Formic acid (HCOOH) has the polar group –OH and can form H-bond with water. Thus, formic acid is highly soluble in water.}$ $\text{(iv) Chloroform is insoluble in water.}$

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
}