Import Question JSON

Current Question (ID: 18881)

Question:

$\text{Which of the following compounds cannot act as an oxidising agent?}$

Options:

1. $\text{CrO}_3$
2. $\text{CrO}_4^{2-}$
3. $\text{WO}_3$
4. $\text{Both 1 and 2}$

Solution:

$\text{HINT: WO}_3 \text{ can't act as oxidising agent.}$ $\text{Explanation:}$ $\text{A species can act as oxidising agent only when metal is present in high oxidation state but lower oxidation state show stability.}$ $\text{When we go down the group the stability of high oxidation state increases in case of transition elements. It is because of lanthanoid contraction the charge/size ratio is more.}$ $\text{As higher oxidations states of W and Mo are more stable, they will not act as oxidising agents.}$

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
}