Import Question JSON

Current Question (ID: 8456)

Question:

$\text{Which of the following compounds is in the correct sequence in terms of relative basic strength?}$

Options:

1. $\text{C}_2\text{H}_5\text{O}^- > \text{CH} \equiv \text{C}^- > \text{OH}^-$
2. $\text{CH} \equiv \text{C}^- > \text{OH}^- > \text{C}_2\text{H}_5\text{O}^-$
3. $\text{CH} \equiv \text{C}^- > \text{C}_2\text{H}_5\text{O}^- > \text{OH}^-$
4. $\text{C}_2\text{H}_5\text{O}^- > \text{OH}^- > \text{CH} \equiv \text{C}^-$

Solution:

$\text{Hint: Higher the charge density of an anion, the higher is its basic strength.}$ $\text{The basic strength of anions is decided on the basis of charge density. The higher the charge density of an anion, the higher is its basic strength. Or stronger acid has a weak conjugate base.}$ $\text{The acid of given conjugate base is as follows:}$ $\text{H}_2\text{O} > \text{C}_2\text{H}_5\text{OH} > \text{CH} \equiv \text{CH}$ $\text{The basicity order of conjugate base is as follows:}$ $\text{HO}^- < \text{C}_2\text{H}_5\text{O}^- < \text{CH} \equiv \text{C}^-$ $\text{Therefore, the correct sequence in terms of relative basic strength is:}$ $\text{CH} \equiv \text{C}^- > \text{C}_2\text{H}_5\text{O}^- > \text{OH}^-$

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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
}