Import Question JSON

Current Question (ID: 13182)

Question:

Birth rate = B Death Rate = D Emigration = E Immigration = I Column-I A. Population is stable B. Population is increasing C. Population is decreasing Column-II I. B + I > D + E II. B + I = D + E III. B + I < D + E IV. B + E > D + I

Options:

1. A - II, B - I, C - III
2. A - II, B - IV, C - III
3. A - III, B - IV, C - I
4. A - I, B - II, C - IV

Solution:

(1) Population increases due to increase in birth rate and immigration while population decreases due to increase in death rate and emigration. A. Population is stable when B+I = D+E B. Population is increasing when B+I > D+E C. Population is decreasing when B+I < D+E. PAGE Fig.13.5. 229, XII NCERT

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
}