Import Question JSON

Current Question (ID: 17892)

Question:

$\text{The major source(s) of soil pollution is/are:}$

Options:

1. $\text{Industrial waste.}$
2. $\text{Fertilizers and pesticides.}$
3. $\text{Organic compost.}$
4. $\text{Both (1) and (2)}$

Solution:

$\text{HINT: Organic compost is used to enrich the soil itself.}$ $\text{Explanation:}$ $\text{Major sources of soil pollution are industrial wastes and agricultural pollutants such as pesticides, fertilizers, etc.}$ $\text{It is very important to maintain the quality and fertility of soil to ensure and sustain the growth of plants and food crops.}$ $\text{Insecticides like DDT are not soluble in water. For this reason, they remain in the soil for a long time, contaminating the root crops.}$ $\text{Pesticides like Aldrin and Dieldrin are non-biodegradable and highly toxic in nature. They can enter the higher trophic levels through food chains, causing metabolic and physiological disorders.}$ $\text{The same is true for industrial wastes that comprise several toxic metals like Pb, As, Hg, Cd, etc. Hence, the best way to check soil pollution is to avoid the direct addition of pollutants to the soil.}$

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
}