Import Question JSON

Current Question (ID: 13577)

Question:

A land snail, a clam, and an octopus all share

Options:

1. a mantle
2. calcareous shell
3. a radula
4. distinct cephalization

Solution:

A mantle is a common feature shared by all three organisms: Land snail: Land snails belong to the phylum Mollusca and have a mantle, which is a fold of skin that covers and protects the internal organs of the snail. Clam: Clams also belong to the phylum Mollusca and have a mantle, which is a fleshy tissue that surrounds the body of the clam and secretes the shell. Octopus: Octopuses belong to the phylum Mollusca and have a mantle, which is a muscular sac that surrounds the body of the octopus and aids in respiration and jet propulsion. Option 2 is not correct because while clams have a calcareous shell, land snails have a shell made of calcium carbonate and octopuses do not have an external shell. Option 3 is not correct because while both land snails and octopuses have a radula, clams do not. Option 4 is not correct because while octopuses exhibit distinct cephalization, land snails and clams do not.

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
}