Import Question JSON

Current Question (ID: 7962)

Question:

$\text{Identify the wrong statement among the following:}$

Options:

1. $\text{Amongst isoelectronic species, the smaller the positive charge on the cation, the smaller the ionic radius.}$ (Correct)
2. $\text{Amongst isoelectronic species, the greater the negative charge on the anion, the larger is the ionic radius.}$
3. $\text{The atomic radius of the elements increases as one moves down the first group of the Periodic Table.}$
4. $\text{The atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the Periodic Table.}$

Solution:

$\text{HINT: For isoelectronic species, ionic radius } \propto \text{ Negative charge}$\n\n$\text{Explanation:}$\n\n$\text{On moving from left to right, the atomic radius decreases across the period. This happens due to the increase in the effective nuclear charge.}$\n\n$\text{Whereas, on moving down the group, the atomic radius increases because of the increase in the number of shells.}$\n\n$\text{Amongst the isoelectronic species, the ionic radius increases in with increasing negative charge in anions and decreases with the increasing positive charge in the cations.}$

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
}