Import Question JSON

Current Question (ID: 9219)

Question:

\text{Match the following:} \text{Element} \quad \text{Biological Significance} \text{(a) Sodium} \quad \text{(i) Oxidation of glucose to produce ATP} \text{(b) Potassium} \quad \text{(ii) Helps in transporting sugars and amino acids into the cells} \text{(c) Magnesium} \quad \text{(iii) Helps in the coagulation of blood} \text{(d) Calcium} \quad \text{(iv) Helps in building and strengthening bones}

Options:

1. $\text{(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)}$
2. $\text{(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)}$
3. $\text{(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)}$
4. $\text{(a)-(iii), (b)-(i), (c)-(iv), (d)-(iii)}$

Solution:

$\text{HINT: All these elements are essential for the body.}$ $\text{Explanation:}$ $\text{Importance of sodium, potassium, magnesium, and calcium in biological fluids:}$ $\text{(1) Sodium (Na): Sodium ions are found primarily in the blood plasma. They help in transporting sugars and amino acids into the cells.}$ $\text{(2) Potassium (K): Potassium ions are found in the highest quantity within the cell fluids. They participate in oxidizing glucose to produce ATP.}$ $\text{(3) Magnesium (Mg): Mg helps in building and strengthening bones and maintains normal blood circulation in the human body system.}$ $\text{(4) Calcium (Ca): Ca helps in the coagulation of blood and also helps in maintaining homeostasis.}$ $\text{Therefore, the correct matching is: (a) Sodium - (ii) transporting sugars and amino acids, (b) Potassium - (i) oxidation of glucose to produce ATP, (c) Magnesium - (iv) building and strengthening bones, (d) Calcium - (iii) coagulation of blood.}$

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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
}