Import Question JSON

Current Question (ID: 12081)

Question:

Mannitol is the stored food in:

Options:

1. Chara
2. Porphyra
3. Fucus
4. Gracilaria

Solution:

Mannitol is a type of carbohydrate that serves as a stored food reserve in certain types of brown algae, including Fucus. Fucus is a brown seaweed commonly found in rocky intertidal zones and is known for its distinctive bladder-like structures, called air bladders or receptacles, which contain mannitol as a stored food source. Mannitol is a sugar alcohol that can be used by Fucus as a source of energy during periods of low light or nutrient availability. It is not stored in Chara, Porphyra, or Gracilaria, which belong to different groups of algae and have different types of stored food reserves.

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
}