Import Question JSON

Current Question (ID: 14279)

Question:

The volume of air involved in breathing movements can be estimated by using

Options:

1. ECG
2. Sphygmomanometer
3. spirometer
4. Barometer

Solution:

A spirometer is a device that is used to measure the volume of air involved in breathing movements. It measures the amount of air that moves in and out of the lungs during breathing. There are different types of spirometers, but the most common type is a handheld device that has a mouthpiece attached to it. The person using the spirometer breathes in and out through the mouthpiece, and the spirometer measures the volume of air that is moved in and out of the lungs. ECG (electrocardiogram) is a test that measures the electrical activity of the heart and is used to detect heart problems. Sphygmomanometer is a device used to measure blood pressure. Barometer is an instrument used to measure atmospheric pressure. None of these devices can be used to measure the volume of air involved in breathing movements.

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
}