Import Question JSON

Current Question (ID: 13454)

Question:

The minute pores in the body wall of the sponges is known as

Options:

1. spongocoel
2. Ostia
3. Osculum
4. Spicules

Solution:

Ostia are small, specialized pores found in the body wall of sponges, which allow water to enter the sponge's internal canal system. The water is then filtered through the sponge's choanocytes, or collar cells, which trap and ingest bacteria and other small particles. Spongocoel is a term used to describe the large, central cavity found in some sponges, which is lined with choanocytes and serves as a space for water circulation. Osculum is another specialized opening found in some sponges, which serves as the exit point for filtered water and waste products. Spicules are small, needle-like structures made of calcium carbonate or silica, which provide structural support and protection for the sponge's body.

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
}