Import Question JSON

Current Question (ID: 21555)

Question:

$\text{Which of the following statements are correct?}$ $\text{(A) } \text{Mn}_2\text{O}_7 \text{ is an oil at room temperature.}$ $\text{(B) } \text{V}_2\text{O}_4 \text{ reacts with acid to give } \text{VO}^{2+}. $ $\text{(C) } \text{CrO is a basic oxide.}$ $\text{(D) } \text{V}_2\text{O}_5 \text{ does not react with acids.}$ $\text{Choose the correct option:}$ $1. \text{ A, B, and C only}$ $2. \text{ B, C and D only}$ $3. \text{ A only}$ $4. \text{ B and C only}$

Options:

1. $\text{A, B, and C only}$
2. $\text{B, C and D only}$
3. $\text{A only}$
4. $\text{B and C only}$

Solution:

$\text{A, B and C are correct}$ $\bullet \text{Mn}_2\text{O}_7 \text{ is a green oil at room temperature.}$ $\bullet \text{V}_2\text{O}_4 \text{ react with acids to give } \text{VO}^{2+}. $ $\bullet \text{CrO is Basic and CrO}_3 \text{ is acidic.}$ $\bullet \text{V}_2\text{O}_5 \text{ react with acids as well as alkali.}$

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
}