Import Question JSON

Current Question (ID: 8650)

Question:

$\text{Ice melts at a temperature lower than its usual melting point when the pressure is increased. This is because-}$

Options:

1. $\text{Ice has less density than water}$
2. $\text{Pressure generates heat}$
3. $\text{The chemical bonds break under pressure}$
4. $\text{Ice is not a true solid}$

Solution:

$\text{Hint: Regelation is the phenomenon of ice melting under pressure and refreezing when the pressure is reduced.}$ $\text{The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere.}$ $\text{With an imminent increase in the value of pressure, the melting point of ice will gradually decrease (i.e. ice melt) due to the less density of ice than that of water.}$ $\text{The phenomenon which is concluded above is called regelation and is commonly used in ice-skating.}$ $\text{Hence, option 1 is the correct answer.}$

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
}