Import Question JSON

Current Question (ID: 8013)

Question:

Which of the following is a polar molecule?

Options:

1. $ \text{SF}_4 $ (Correct)
2. $ \text{SiF}_4 $
3. $ \text{XeF}_4 $
4. $ \text{BF}_3 $

Solution:

HINT: Dipole moment of symmetrical molecule is zero. Explanation: STEP 1: | Molecules | Hybridization | Shape | |-----------|---------------|---------------| | $ \text{SF}_4 $ | $ \text{sp}^3\text{d} $ | See-Saw | | $ \text{SiF}_4 $ | $ \text{sp}^3 $ | Tetrahedral | | $ \text{XeF}_4 $ | $ \text{sp}^3\text{d}^2 $ | Square Planar | | $ \text{BF}_3 $ | $ \text{sp}^2 $ | Trigonal planar | STEP 2: Due to the see-saw shape of $ \text{SF}_4 $, net $ \mu \neq 0 $. All other molecules have zero dipole moment.

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
}