Import Question JSON

Current Question (ID: 10665)

Question:

$\text{The correct statement among the following about SO}_2 \text{ gas is:}$

Options:

1. $\text{It acts as bleaching agent in moist conditions.}$ (Correct)
2. $\text{It's molecule has linear geometry.}$
3. $\text{It's concentrated solution is used as a disinfectant.}$
4. $\text{It can be prepared by the reaction of dilute H}_2\text{SO}_4 \text{ with metal sulphide.}$

Solution:

$\text{HINT- In moist condition SO}_2 \text{ gas acts as a bleaching agent.}$ $\text{Explanation:}$ $\text{STEP 1-}$ $\text{e.g., it converts Fe (III) to Fe (II) ion and decolourises acidified KMnO}_4 \text{ (VII).}$ $2\text{Fe}^{3+} + \text{SO}_2 + 2\text{H}_2\text{O} \rightarrow 2\text{Fe}^{2+} + \text{SO}_4^{2-} + 4\text{H}^+$ $\text{(2) It is incorrect it has bent structure.}$ $\text{STEP2- (c) It's dilute solution is used as a disinfectant.}$ $\text{(d) It can be prepared by the reaction of O}_2 \text{ with sulphide ore,}$ $4\text{FeS}_2 + 11\text{O}_2 \rightarrow 2\text{Fe}_2\text{O}_3 + 8\text{SO}_2$ $\text{while metal on treatment with H}_2\text{SO}_4 \text{ produces H}_2\text{S.}$

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
}