Import Question JSON

Current Question (ID: 8149)

Question:

$7.0\text{ g of gas occupies 5.6 L of volume at STP. The gas is-}$

Options:

1. $\text{NO}$
2. $\text{N}_2 ext{O}$
3. $\text{CO}$
4. $\text{CO}_2$

Solution:

$\text{Hint: The volume of gas at STP is 22.4 L.} ext{Step 1:} ext{Calculate the mole of 5.6 L gas at STP is as follows:} $22.4 ext{ L gas at STP = 1 mol}$ $1 ext{ L gas at STP} = rac{1}{22.4} ext{mol}$ $5.6 ext{ L gas at STP} = rac{1}{22.4} imes 5.6 ext{ mol}$ $= 0.25 ext{ mol}$ $ ext{Step 2:} ext{Calculate the molar mass of gas is as follows:} ext{Number of mole} = rac{ ext{amount of gas}}{ ext{molar mass of gas}} $0.25 ext{ mol} = rac{7.0 ext{ g}}{ ext{molar mass of gas}}$ $ ext{molar mass of gas} = rac{7.0 ext{ g}}{0.25 ext{ mol}}$ $ ext{The molar mass of gas = 28 g/mol}$ $ ext{Hence, the gas is CO}$

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
}