Import Question JSON

Current Question (ID: 9215)

Question:

$\text{Alkali metal ions are-}$

Options:

1. $\text{Diamagnetic and coloured.}$
2. $\text{Diamagnetic and colourless.}$
3. $\text{Paramagnetic and coloured.}$
4. $\text{Paramagnetic and colourless.}$

Solution:

$\text{HINT: If an ion contains an unpaired electron hence it is paramagnetic.}$ $\text{Explanation:}$ $\text{Paramagnetic compounds contain one or more unpaired electrons and are attracted to the poles of a magnet.}$ $\text{The alkali metal outermost electronic configuration is ns}^1 \text{ after losing one electron they attained noble gas configuration and they did not contain any unpaired electrons.}$ $\text{All the orbital of alkali metal ion is full filled that is why it is highly stable so the electronic Transition cant take place easily hence the ions are colourless.}$ $\text{Hence, they are colourless and diamagnetic in nature.}$

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
}