In the given reaction `CH_3MgBr+D_2Orarr(X),` (X) will be

Options

A. `CH_4`
B. `CH_3D`
C. `CH_2D_2`
D. `CH_3OH`

Answer

To solve the question regarding the reaction of CH₃MgBr with D₂O, we need to analyze the reaction step by step.

### Step 1: Identify the Reactants
The reactants in the reaction are:
- CH₃MgBr (Methylmagnesium bromide, a Grignard reagent)
- D₂O (Deuterated water)

### Step 2: Understand the Nature of Grignard Reagents
Grignard reagents are highly reactive organomagnesium compounds. They act as nucleophiles and can react with electrophiles, such as protons (H⁺) present in water or alcohols.

### Step 3: Reaction with D₂O
When CH₃MgBr reacts with D₂O, the Grignard reagent will react with the deuterium (D) from D₂O instead of regular hydrogen (H). The reaction can be represented as follows:

\[ \text{CH}_3\text{MgBr} + \text{D}_2\text{O} \rightarrow \text{CH}_3\text{D} + \text{Mg(OD)Br} \]

### Step 4: Identify the Product
From the reaction, we can see that the product formed is CH₃D (methyl deuteride) along with magnesium bromide deuteroxide (Mg(OD)Br).

### Conclusion
Thus, the product (X) formed in the reaction is CH₃D.

### Final Answer
(X) will be CH₃D.

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