Import Question JSON

Current Question (ID: 8566)

Question:

$\text{Which element exhibits both positive and negative oxidation states?}$

Options:

1. $\text{Cs}$
2. $\text{Ne}$
3. $\text{I}$
4. $\text{F}$

Solution:

$\text{Hint: I exist in positive as well as negative oxidation state.}$ $\text{Explanation:}$ $\text{1) Cs exhibits positive oxidation state of +1.}$ $\text{2) The oxidation state of Ne is zero. It exhibits neither negative nor positive oxidation states.}$ $\text{3) I exhibits both positive and negative oxidation states. It exhibits oxidation states of -1, +1, +3, +5, and +7.}$ $\text{4) F exhibits only negative oxidation state of -1.}$ $\text{Detailed Analysis:}$ $\text{Cesium (Cs): As an alkali metal, Cs only loses electrons to form Cs}^+ \text{, showing only +1 oxidation state.}$ $\text{Neon (Ne): As a noble gas, Ne typically does not form compounds and maintains oxidation state of 0.}$ $\text{Iodine (I): As a halogen, I can gain electrons (-1) or lose electrons when bonding with more electronegative elements like oxygen (+1, +3, +5, +7).}$ $\text{Fluorine (F): As the most electronegative element, F can only gain electrons, showing only -1 oxidation state.}$

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
}