Import Question JSON

Current Question (ID: 12156)

Question:

The leaf of Pinus is

Options:

1. Needle shaped
2. Compound leaf
3. Having veinlets
4. Non-cutinised

Solution:

The leaves of Pinus, commonly known as pine, are needle-shaped. Pine trees have needle-like leaves that are adapted to withstand harsh environmental conditions, such as cold temperatures and low water availability. These needle-shaped leaves are typically long, slender, and pointed, and they are arranged in bundles called fascicles. Pine needles have a thick cuticle, which helps to reduce water loss, and they usually have resin canals that contain resin, which acts as a defense mechanism against herbivores and pathogens. Pine needles also have vascular tissue in the form of veinlets that transport water and nutrients throughout the leaf.

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
}