Import Question JSON

Current Question (ID: 13593)

Question:

Which of the following structure is associated with locomotion? (i) Parapodia. (ii) Water vascular system. (iii) Radula. (iv) Proboscis.

Options:

1. (i), (ii), (iii), (iv)
2. (i) only
3. (i), (ii) only
4. (i), (iii) only

Solution:

Parapodia and water vascular system are structures associated with locomotion in certain animals: (i) Parapodia are appendages found in some marine worms, such as polychaetes, that are used for locomotion. They are paired paddle-like structures that are covered in bristles (called chaetae) and are used for crawling, burrowing, or swimming. (ii) Water vascular system is a unique hydraulic system found in echinoderms, such as starfish, sea urchins, and sea cucumbers, that is used for locomotion, feeding, and respiration. It consists of a network of fluid-filled canals and tube feet, which are used for movement.

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
}