Import Question JSON

Current Question (ID: 8529)

Question:

\text{The most hydrolyzed salt among the following is-} \text{(Assume that } K_b \text{ of all weak bases is the same)}

Options:

1. $\text{NH}_4\text{Cl}$
2. $\text{CuSO}_4$
3. $\text{AlCl}_3$
4. $\text{All are equally hydrolyzed.}$

Solution:

\text{Hint: Concept of salt hydrolysis} \text{Explanation:} \text{Degree of hydrolysis is inversely proportional to charge present on cation or anion} \text{NH4Cl when dissolved in water undergoes cationic hydrolysis as follows:} \text{NH4Cl → NH4+ + Cl-} \text{Ammonium ion being a strong acid takes OH- ions furnished by water as:} \text{NH4+ + H2O → NH4OH (freely ionized) + H+} \text{The concentration of OH- ions decreases and that of H+ ion increases} \text{due to cationic hydrolysis and consequently the solution becomes acidic in nature.}

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
}