Import Question JSON

Current Question (ID: 7952)

Question:

$\text{The correct order of metallic character of elements B, Al, Mg and K is :}$

Options:

1. $\text{B} > \text{Al} > \text{Mg} > \text{K}$
2. $\text{Al} > \text{Mg} > \text{B} > \text{K}$
3. $\text{Mg} > \text{Al} > \text{K} > \text{B}$
4. $\text{K} > \text{Mg} > \text{Al} > \text{B}$ (Correct)

Solution:

$\text{HINT: The correct metallic order: K} > \text{Mg} > \text{Al} > \text{B}$\n\n$\text{Explanation:}$\n\n$\text{Metal has the ability to lose an electron. When an electron is added then the size of atom goes decreasing due to nuclear pull which ultimately makes metals difficult to lose electrons.}$\n\n$\text{The metallic character of elements decreases from left to right across a period.}$\n\n$\text{The metallic character of elements increases down a group. Thus, the metallic character increases as we move down and left in the periodic table.}$\n\n$\text{Considering the above statements, we get K} > \text{Mg} > \text{Al} > \text{B}$

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
}