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Passage Organic compounds mainly consi...

Passage
Organic compounds mainly consist of covalent bonds. The electron pair in these covalent bonds may undergo displacement either of their own or under the influence of other species. The cleavage of covalent bond between two atoms takes place in homolytic or heterolytic fashion. The homolytic fission results into free radicals while heterolytic fission results into carbocations and carbanions. These are also called reaction intermediates and are attacked by electrophiles and nucleophiles. The electrophiles seek electron rich sites while nucleophiles seek electron deficient sites.
Answer the followings Questions :
Diazomethane decomposes in the presence of light to give

A

free radical

B

carbocation

C

carbenes

D

carbanion

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the decomposition of diazomethane in the presence of light, we will follow these steps: ### Step 1: Understand Diazomethane Structure Diazomethane has the molecular formula CH2N2. It consists of a methylene group (CH2) connected to a diazo group (N2). The structure can be represented as: \[ \text{H}_2C=N^+=N^- \] ### Step 2: Identify the Decomposition Reaction When diazomethane is exposed to light (or heat), it undergoes decomposition. The reaction can be summarized as: \[ \text{CH}_2N_2 \xrightarrow{\text{light}} \text{CH}_2 + \text{N}_2 \] ### Step 3: Products of the Reaction The decomposition of diazomethane results in the formation of: 1. **Carbene (CH2)**: This is a neutral species with two carbon atoms and two hydrogen atoms, having an incomplete octet. 2. **Nitrogen gas (N2)**: A stable diatomic molecule that is released as a byproduct. ### Step 4: Analyze the Options The question asks what diazomethane decomposes to give. The options provided are: - Free radical - Carbocation - Carbene - Carbanion From our analysis: - **Free radical**: Not formed in this reaction. - **Carbocation**: Not formed in this reaction. - **Carbene**: Formed as a product. - **Carbanion**: Not formed in this reaction. ### Conclusion The correct answer is **Carbene** (CH2). ### Final Answer Diazomethane decomposes in the presence of light to give **Carbene (CH2)** and nitrogen gas (N2). ---
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