Import Question JSON

Current Question (ID: 8102)

Question:

$\text{Which of the following molecules exhibits H-bonding?}$

Options:

1. $\text{CH}_4$
2. $\text{H}_2\text{Se}$
3. $\text{N}_2\text{H}_4$
4. $\text{H}_2\text{S}$

Solution:

$\text{HINT: Hydrogen should be attached to an electronegative element.}$ $\text{Explanation:}$ $\text{STEP 1: There are two requirements for hydrogen bonding.}$ $\text{1. Molecules has hydrogen attached to a highly electronegative atom (N, O, F).}$ $\text{2. Molecule has a lone pair of electrons on a small highly electronegative atom (N, O, F).}$ $\text{STEP 2:}$ $\text{Among the given options only } \text{N}_2\text{H}_4 \text{ exhibits H-bonding. In all other molecules, hydrogen is not attached to an electronegative atom.}$ $\text{Thus, the correct answer is option 3.}$

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
}