Import Question JSON

Current Question (ID: 21319)

Question:

$\text{Which of the following compounds has the lowest boiling point?}$ $1.\ \text{n-Butane}$ $2.\ \text{Isobutene}$ $3.\ \text{1-Butene}$ $4.\ \text{1-Butyne}$

Options:

1. $\text{n-Butane}$
2. $\text{Isobutene}$
3. $\text{1-Butene}$
4. $\text{1-Butyne}$

Solution:

$\text{Hint: Boiling point is inversely proportional to the branching in the compound}$ $\text{The boiling point depends on the intermolecular force of attraction between the molecules of a given hydrocarbon.}$ $\text{As the molecular mass of the compound increases, the molecular size or the surface area of the molecule and because of it}$ $\text{the intermolecular van der Waals forces increase.}$ $\text{As branching increases, the surface area of a molecule decreases, and hence boiling point decreases.}$ $\text{The structure of given compounds are as follows:}$ $\text{Isobutene has the minimum boiling point because as branching increases boiling point also increases.}$ $\text{The boiling point of given compounds are as follows:}$ $\text{n-Butane = -1 }^{\circ}\text{C}$ $\text{Isobutene = -7 }^{\circ}\text{C}$ $\text{1-Butene = -6.3 }^{\circ}\text{C}$ $\text{1-Butyne = 8.08 }^{\circ}\text{C}$

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
}