Import Question JSON

Current Question (ID: 18838)

Question:

$\text{The correct statement regarding the element silver (Ag) is:}$

Options:

1. $\text{It is a hard metal.}$
2. $\text{It is not a transition element.}$
3. $\text{It has a partially filled d orbital in a +2 oxidation state. Thus, it is a transition element.}$
4. $\text{None of the above}$

Solution:

$\text{Ag is a transition element.}$ $\text{d-block elements are called transition elements as they contain an inner partially filled d-subshell.}$ $\text{Ag has a filled 4d orbital (4d}^{10} \text{5s}^{1}\text{) in its ground state.}$ $\text{Now, silver displays two oxidation states (+1 and +2).}$ $\text{In the +1 oxidation state, an electron is removed from the s-orbital.}$ $\text{However, in the +2 oxidation state i.e., AgF}_2\text{, an electron is removed from the d-orbital.}$ $\text{Thus, the d-orbital now becomes incomplete (4d}^{9}\text{). Hence, it is a transition element.}$ $\text{Similar in its composition and character to gold and copper, silver is a very soft, ductile, and malleable metal that also takes a very high polish.}$ $\text{While it doesn't have the hardness of gold,}$

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
}