Import Question JSON

Current Question (ID: 13659)

Question:

A thin-walled, triangular chamber attached dorsally to heart of a frog is known as

Options:

1. Truncus arteriosus
2. Sinus venosus
3. Atrium
4. Ventricle

Solution:

In the circulatory system of a frog, the sinus venosus is a thin-walled, triangular chamber that is located dorsal to the heart. It receives deoxygenated blood from the body and pumps it into the right atrium of the heart. The heart of a frog consists of three chambers: two atria and a single ventricle. After entering the right atrium, the blood flows through the right AV valve into the ventricle. From there, it is pumped into the truncus arteriosus, which divides into the pulmonary artery and the systemic arch, and then flows out to the lungs and the rest of the body, respectively. Therefore, the sinus venosus is an important component of the circulatory system of a frog and plays a critical role in receiving and directing blood flow to the heart.

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
}