Import Question JSON

Current Question (ID: 11387)

Question:

Which pigment acts directly to convert light energy to chemical energy?

Options:

1. Chlorophyll a.
2. Chlorophyll b.
3. Xanthophyll.
4. Carotenoid.

Solution:

The pigment that acts directly to convert light energy to chemical energy is chlorophyll a. Chlorophyll a is the primary pigment involved in the light reactions of photosynthesis. It is a green pigment found in all photosynthetic organisms and is responsible for capturing light energy from the sun and converting it into chemical energy, which is then used to power the Calvin cycle and ultimately produce carbohydrates. Chlorophyll b, xanthophylls, and carotenoids are also important pigments in photosynthesis, but they serve primarily as accessory pigments that assist in capturing light energy and transferring it to chlorophyll a.

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
}