Import Question JSON

Current Question (ID: 13610)

Question:

Similarity between protochordata and hemichordata is

Options:

1. Presence of notochord.
2. Exclusively marine.
3. Dorsal hollow and single central nervous system.
4. Exclusively parasitic.

Solution:

Both protochordates (phylum Chordata) and hemichordates (phylum Hemichordata) are exclusively marine animals, meaning they are found only in marine environments such as oceans and seas. Option 1 is incorrect as notochord is not present in hemichordates. Notochord is a defining characteristic of protochordates, including animals like tunicates and lancelets, but it is not present in hemichordates. Option 3 is incorrect as hemichordates do not have a dorsal hollow and single central nervous system. Protochordates, including animals like tunicates and lancelets, do have a dorsal hollow nerve cord and a single central nervous system. Option 4 is incorrect as hemichordates are not exclusively parasitic. Some hemichordates are free-living, while others may have parasitic or symbiotic relationships with other marine organisms, but it is not an exclusive characteristic of hemichordates.

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
}