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Current Question (ID: 17827)

Question:

$\text{Environmental chemistry is best defined as:}$ $1.\ \text{Study of chemical processes in nature.}$ $2.\ \text{Study of biochemical processes in nature.}$ $3.\ \text{Both (1) and (2)}$ $4.\ \text{None of the above.}$

Options:

1. $\text{Study of chemical processes in nature.}$
2. $\text{Study of biochemical processes in nature.}$
3. $\text{Both (1) and (2)}$
4. $\text{None of the above.}$

Solution:

$\text{HINT: It involves the study of origin, Transport, reaction, effect of chemical species in the environment}$ $\text{Explanation:}$ $\text{Environmental chemistry is the study of chemical and biochemical processes occurring in nature.}$ $\text{Environmental chemistry focuses on the presence and impact of chemicals in soil, surface water, and groundwater.}$ $\text{Environmental chemists study how chemicals - usually contaminants - move through the environment. This is referred to as chemical “fate and transport”.}$ $\text{It should not be confused with green chemistry, which seeks to reduce potential pollution at its source.}$

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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
}