Import Question JSON

Current Question (ID: 8248)

Question:

$\text{A Beckmann thermometer is used to measure -}$

Options:

1. $\text{High temperature}$
2. $\text{Low temperature}$
3. $\text{Normal temperature}$
4. $\text{All temperatures}$

Solution:

$\textbf{Hint:} \text{Used for measuring small differences in temperature, having readability of around } 0.001°\text{C}$\n\n$\text{A Beckmann thermometer is used to measure low temperature.}$\n\n$\text{The Beckmann differential thermometer is used for measuring small differences in temperature, having readability of around } 0.001°\text{C. This makes it useful for the determination of melting points, boiling points, and calorimetry. Today it is superseded by sensitive digital thermometers using thermocouples, thermistors.}$\n\n$\text{The key feature of a Beckmann thermometer is its high precision for measuring small temperature changes rather than absolute temperatures. It is specifically designed for precise measurements in the lower temperature range and for detecting minute temperature differences.}$\n\n$\text{Therefore, option (2) is correct.}$

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
}