Import Question JSON

Current Question (ID: 18247)

Question:

$\text{When aqueous NaCl solution is electrolysed using inert electrodes then pH of the solution-}$

Options:

1. $\text{Increases.}$
2. $\text{Decreases.}$
3. $\text{Remains same.}$
4. $\text{First increases then decreases.}$

Solution:

$\text{When aqueous solution of NaCl undergo electrolysis reaction then at cathode hydrogen gas is formed and in anode chlorine gas is formed.}$ $\text{The overall reaction are as follows:}$ $\text{NaCl}_{(aq)} + \text{H}_2\text{O}_{(l)} \rightarrow \text{Na}^+_{(aq)} + \text{OH}^-_{(aq)} + \frac{1}{2}\text{H}_2_{(g)} + \frac{1}{2}\text{Cl}_2_{(g)}$ $\text{In product side, hydroxide ion is generated hence, it will increases the pH of the solution.}$

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
}