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Current Question (ID: 10590)

Question:

$\text{The correct increasing order for the acid strength of nitrogen oxides is:}$

Options:

1. $\text{N}_2\text{O} < \text{NO} < \text{N}_2\text{O}_4 < \text{N}_2\text{O}_3 < \text{N}_2\text{O}_5$
2. $\text{N}_2\text{O} < \text{NO} < \text{N}_2\text{O}_3 < \text{N}_2\text{O}_4 < \text{N}_2\text{O}_5$ (Correct)
3. $\text{N}_2\text{O} < \text{N}_2\text{O}_3 < \text{N}_2\text{O}_4 < \text{N}_2\text{O}_5 < \text{NO}$
4. $\text{NO} < \text{N}_2\text{O} < \text{N}_2\text{O}_3 < \text{N}_2\text{O}_4 < \text{N}_2\text{O}_5$

Solution:

$\text{Hint: As the oxidation state of nitrogen increases the acidic character of oxide increases.}$ $\text{The oxidation state of nitrogen in } \text{N}_2\text{O} < \text{NO} < \text{N}_2\text{O}_3 < \text{N}_2\text{O}_4 < \text{N}_2\text{O}_5 \text{ decreases in the order of } +1 < +2 < +3 < +4 < +5.$ $\text{respectively. As the oxidation state of nitrogen increases the acidic character of oxide increases.}$ $\text{In fact, } \text{N}_2\text{O} \text{ and } \text{NO} \text{ are neutral oxides.}$

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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
}