Import Question JSON

Current Question (ID: 8657)

Question:

$\text{The correct statement about electron-deficient hydride is that it:}$

Options:

1. $\text{Does not have sufficient electrons to form a regular bond.}$
2. $\text{Cannot be represented by conventional Lewis structures.}$
3. $\text{Accept electrons.}$
4. $\text{All of the above.}$

Solution:

$\text{Hint: Electron-deficient hydride is a lewis acid}$ $\text{An electron-deficient hydride does not have sufficient electrons to form a}$ $\text{regular bond in}$ $\text{which two electrons are shared by two atoms e.g., }\text{B}_2\text{H}_6\text{ , Al}_2\text{H}_6\text{ etc.}$ $\text{These hydrides cannot be represented by conventional Lewis structures.}$ $\text{For example, }\text{B}_2\text{H}_6\text{ contains four regular bonds and two-three centered-two}$ $\text{electron bond.}$ $\text{Its structure can be represented as:}$ $\text{Since these hydrides are electron-deficient, they have a tendency to accept}$ $\text{electrons.}$ $\text{Hence, they act as Lewis acids.}$ $\text{B}_2\text{H}_6 + 2\text{NMe}_3 \rightarrow 2\text{BH}_3 \cdot \text{NMe}_3$ $\text{B}_2\text{H}_6 + 2\text{CO} \rightarrow 2\text{BH}_3 \cdot \text{CO}$

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
}