When benzyl chloride (C₆H₅CH₂Cl) reacts with magnesium metal in dry ether, it forms a Grignard reagent known as benzylmagnesium chloride (C₆H₅CH₂MgCl).
Upon treatment with water, this Grignard reagent undergoes hydrolysis to form benzyl alcohol (C₆H₅CH₂OH), which is the product 'A'.
Correct Answer: (B) Benzyl alcohol
List-I Compound | List-II Product in Basic Medium (in NaOH + Heat) | ||
A | Ethanal | (I) | Benzoic acid + Phenyl methanol |
B | Methanal | (II) | 3-Hydroxybutanal + But-2-enal |
C | Benzenecarbaldehyde | (III) | 4-Hydroxy-4-methylpentan-2-one + 4-Methylpent-3-en-2-one |
D | Acetone | (IV) | Formic acid + Methanol |
For the reaction:
\[ 2A + B \rightarrow 2C + D \]
The following kinetic data were obtained for three different experiments performed at the same temperature:
\[ \begin{array}{|c|c|c|c|} \hline \text{Experiment} & [A]_0 \, (\text{M}) & [B]_0 \, (\text{M}) & \text{Initial rate} \, (\text{M/s}) \\ \hline I & 0.10 & 0.10 & 0.10 \\ II & 0.20 & 0.10 & 0.40 \\ III & 0.20 & 0.20 & 0.40 \\ \hline \end{array} \]
The total order and order in [B] for the reaction are respectively: