Import Question JSON

Current Question (ID: 14335)

Question:

Which of the following events happen when air enters lungs 1. Ribs and sternum raised 2. volume of thorax increased 3. Diaphragm contracted 4. All of the above

Options:

1. Ribs and sternum raised
2. volume of thorax increased
3. Diaphragm contracted
4. All of the above

Solution:

All of the above events happen when air enters lungs. The expansion of the thorax by the action of muscles leads to a decrease in pressure within the lungs, causing air to flow in through the nose or mouth. The diaphragm is a sheet of muscle that forms the floor of the thoracic cavity, and when it contracts, it moves downwards, increasing the volume of the thoracic cavity and drawing air into the lungs. At the same time, the intercostal muscles contract, raising the ribs and sternum, further increasing the volume of the thoracic cavity.

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
}