Import Question JSON

Current Question (ID: 14602)

Question:

Which of the following has no role in the elimination of excretory wastes?

Options:

1. Kidneys
2. Lungs
3. Skin
4. Oesophagus

Solution:

The oesophagus is a muscular tube that connects the mouth to the stomach and has no role in the elimination of excretory wastes. Its main function is to transport food from the mouth to the stomach for digestion. On the other hand, the kidneys, lungs, and skin all play important roles in eliminating excretory wastes from the body. The kidneys filter waste products from the blood and excrete them in the urine, the lungs remove carbon dioxide and other gases from the blood and release them into the air during exhalation, and the skin eliminates waste products through sweat and sebum secretion.

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
}