Import Question JSON

Current Question (ID: 8003)

Question:

$\text{H}_2\text{O}$ has a net dipole moment while $\text{BeF}_2$ has zero dipole moment because :

Options:

1. $\text{F is more electronegative than oxygen.}$
2. $\text{Be is more electronegative than oxygen.}$
3. $\text{H}_2\text{O molecule is linear and } \text{BeF}_2 \text{ is bent.}$
4. $\text{BeF}_2 \text{ molecule is linear and } \text{H}_2\text{O is bent.}$ (Correct)

Solution:

$\text{HINT : Dipole moment depends on the structure of the compound.} \text{Explanation:} \text{The structure of } \text{H}_2\text{O and } \text{BeF}_2 \text{ is given below:} \text{Due to the presence of lone pair around a central atom } \text{H}_2\text{O is polar and it has a dipole moment. } \text{BeF}_2 \text{ is linear and its net dipole moment is zero.} \text{Presence of lone pair around central atom creates polarity.} \text{Therefore, } \text{BeF}_2 \text{ molecule is linear and } \text{H}_2\text{O is bent.}$

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
}