JEE Mains · Chemistry · STD 12 - 6. Haloalkanes and Haloarenes
\(RMgI\) when treated with ice cold water liberated a gas which occupied \(1.4\text{ dm}^3/\text{g}\) at STP. The gas produced is further reacted with iodine in presence of \(HIO_3\) to give compound (X). Compound (X) in presence of Na and dry ether produced compound (Y). Molar mass of compound (Y) is _______ \(\text{g mol}^{-1}\). (Nearest integer)
- A 20
- B 30
- C 40
- D 50
Answer & Solution
Correct Answer
(B) 30
Step-by-step Solution
Detailed explanation
The reaction of Grignard reagent with water yields an alkane: \(RMgI + H_2O \rightarrow RH + Mg(OH)I\) Given that \(1 \text{ g}\) of the gas \(RH\) occupies \(1.4 \text{ dm}^3\) at STP, we can find its molar mass. Using the standard molar volume at STP (\(22.4 \text{ dm}^3\)):…
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