COMEDK · Chemistry · 1. Some Basic Concepts of Chemistry
1.12 mL of gas is produced at STP by the action of 4.12 mg of alcohol, ROH , methyl magnesium iodide. The molecular mass of alcohol is
- A \(16.0 \mathrm{~g} / \mathrm{mol}\)
- B \(41.2 \mathrm{~g} / \mathrm{mol}\)
- C \(82.4 \mathrm{~g} / \mathrm{mol}\)
- D \(156 \mathrm{~g} / \mathrm{mol}\)
Answer & Solution
Correct Answer
(C) \(82.4 \mathrm{~g} / \mathrm{mol}\)
Step-by-step Solution
Detailed explanation
The complete reaction involved is, \(\begin{gathered} \mathrm{ROH}+\mathrm{CH}_3 \mathrm{MgI} \longrightarrow \underset{1 \text { mole }}{\mathrm{CH}_4}+\mathrm{Mg}(\mathrm{OH}) \mathrm{I} \\ =22400 \mathrm{~mL} \end{gathered}\) 1.12 mL is obtained from…
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