Import Question JSON

Current Question (ID: 10541)

Question:

$\text{Small droplets of liquid are usually more spherical in shape than the larger drops of the same liquid because:}$

Options:

1. $\text{the force of surface tension is equal and opposite to the force of gravity.}$
2. $\text{the force of surface tension predominates the force of gravity.}$
3. $\text{the force of gravity predominates the force of surface tension.}$
4. $\text{the force of gravity and the force of surface tension act in the same direction and are equal.}$

Solution:

$\text{When the surface energy is minimum, the droplets are spherical and the force of surface tension is more than the gravitational force. When the gravitational force is more than the force of surface tension, the surface energy is no more minimum and the droplet is no more spherical.}$

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
}