Import Question JSON

Current Question (ID: 10631)

Question:

$\text{Sulphuric acid is used:}$

Options:

1. $\text{In lead storage batteries}$
2. $\text{In making fertilizers}$
3. $\text{As a dehydrating agent}$
4. $\text{All of the above}$ (Correct)

Solution:

$\text{HINT: Sulphuric acid can be used in making various fertilizers, lead storage batteries, explosives, dyes, medicines, etc.}$ $\text{Explanation:}$ $\text{In lead storage batteries, each cell consists of a lead anode (a grid of lead-filled with finely divided spongy lead) and a grid of lead packed with lead dioxide as a cathode. These electrodes are arranged alternately, separated by thin wooden or fiberglass sheets, and suspended in diluted sulphuric acid.}$ $\text{Diluted sulphuric acid acts as an electrolyte in lead storage batteries. The acid used in lead storage batteries is sulphuric acid which is 38% by mass.}$ $\text{Sulfuric acid and hydrochloric acids are, by nature, caustic materials. In fertilizers, sulfuric acid may be used as a dehydrating agent or to alter the pH (soil acidity) level.}$ $\text{Hence, option 4 is the correct answer.}$

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
}