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Current Question (ID: 11883)

Question:

Chemosynthetic autotrophs derive energy by

Options:

1. By sunlight
2. By oxidation of inorganic substances
3. By reduction of inorganic substances
4. By reduction followed by oxidation of inorganic substances

Solution:

Chemosynthetic autotrophs, also known as chemolithotrophs, derive their energy by oxidizing inorganic substances. They do not use sunlight as a source of energy like photosynthetic autotrophs, but instead obtain energy by oxidizing inorganic compounds, such as ammonia, hydrogen sulfide, iron, or other inorganic molecules. This process releases energy that is used to synthesize organic molecules for their own growth and survival. Chemosynthetic autotrophs are typically found in environments with little or no sunlight, such as deep-sea hydrothermal vents, caves, and certain types of soils.

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
}