Import Question JSON

Current Question (ID: 14303)

Question:

The movement of air into the lungs occurs due to a pressure gradient between the lungs and the atmosphere. So, inspiration occurs when/due to

Options:

1. Intra pulmonary is less than the atmospheric pressure
2. Increase in the volume of the thoracic chamber in the dorso-ventral axis
3. Contraction of external inter-costal muscles and phrenic muscles
4. All of these

Solution:

The movement of air into the lungs during inspiration occurs due to a pressure gradient between the lungs and the atmosphere. The pressure in the alveoli decreases below the atmospheric pressure, and air moves from high pressure (atmosphere) to low pressure (lungs). This is facilitated by an increase in the volume of the thoracic chamber in the dorso-ventral axis, which is achieved by contraction of the diaphragm and external intercostal muscles. The phrenic nerve stimulates the diaphragm to contract, and the intercostal nerves stimulate the external intercostal muscles to contract, resulting in the expansion of the thoracic cage.

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
}