Import Question JSON

Current Question (ID: 18683)

Question:

$\text{The IUPAC name of } [\text{Co(ONO)(NH}_3)_5]\text{Cl}_2 \text{ is:}$

Options:

1. $\text{Pentaamminenitro-O-cobalt(II)chloride}$
2. $\text{Pentaamminenitroso-O-cobalt(III)chloride}$
3. $\text{Pentaamminenitrito-O-cobalt(III) chloride}$
4. $\text{Pentaammineoxo-nitrocobalt(III)chloride}$

Solution:

$\text{HINT: -ONO have -1 charge.}$ $\text{Explanation:}$ $\text{The given complex is } [\text{Co(ONO)(NH}_3)_5]\text{Cl}_2.$ $1. \text{ It contains two ligands, that is, } -\text{ONO and NH}_3. \text{ For ONO ligand nitrito is used and for NH}_3 \text{ ammine is used. Prefix "penta" is used as 5 NH}_3 \text{ ligands are present.}$ $\text{Naming of ligand in the complex will be done in alphabetical order.}$ $2. \text{ Let the oxidation number of Co is "x"}$ $x + (-1) = +2$ $x = +3$ $\text{So, the oxidation of cobalt is +3.}$ $3. \text{ The name of the compound is as follows: Pentaamminenitrito-o-cobalt(III) chloride}$

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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
}