Import Question JSON

Current Question (ID: 10615)

Question:

$\text{Which of the following acids is the strongest?}$

Options:

1. $\text{H}_3\text{PO}_2$
2. $\text{H}_3\text{PO}_3$
3. $\text{H}_4\text{P}_2\text{O}_7$ (Correct)
4. $\text{H}_3\text{PO}_4$

Solution:

$\text{HINT: } \text{H}_4\text{P}_2\text{O}_7 \text{ is the strongest acid among the following options.}$ $\text{Explanation:}$ $\text{STEP 1:}$ $\text{The structure of all the acids are as follows:}$ $\text{Pyrophosphoric acid structure shows two phosphorus atoms connected by an oxygen bridge, with each phosphorus having terminal oxygen atoms and OH groups.}$ $\text{STEP 2:}$ $\text{The acidic strength of all these acids is almost same because each acid contains one terminal oxygen atom and the electronegativity of other atoms (P and H) present in these acids is almost same.}$ $\text{However, strongest acid among these should be } \text{H}_4\text{P}_2\text{O}_7$

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
}