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Compound 'A' on chlorination gives compo...

Compound `'A'` on chlorination gives compound `'B'`, compound `'B'` reacts with alc. `KOH` gives gas `'C',` which decolourise Baeyer reagent. Ozonolysis of compound `'C'` gives only `HCHO` compound `'A'` is:

A

`C_2H_6`

B

`C_2H_4`

C

`C_4H_10`

D

`C_2H_5Cl`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we will analyze the information provided in the question and deduce the structures of the compounds involved. ### Step 1: Identify Compound C The question states that ozonolysis of compound C gives only HCHO (formaldehyde). Ozonolysis typically cleaves double bonds in alkenes to yield carbonyl compounds. Since the only product is HCHO, compound C must be a simple alkene that, upon ozonolysis, produces formaldehyde. **Assumption**: - If we consider compound C to be ethylene (C2H4), ozonolysis would break the double bond and yield two molecules of HCHO. ### Step 2: Confirm the Structure of Compound C Since we deduced that compound C is likely ethylene (C2H4), we can confirm that it can decolorize Baeyer’s reagent (which is a test for unsaturation). Ethylene is indeed an unsaturated hydrocarbon, and it will decolorize Baeyer’s reagent. ### Step 3: Identify Compound B The question states that compound B reacts with alcoholic KOH to give gas C. The reaction of an alkyl halide with alcoholic KOH typically leads to an elimination reaction (E2 mechanism), producing an alkene. **Assumption**: - If compound C is ethylene (C2H4), then compound B must be an alkyl halide that can yield ethylene upon elimination. A suitable candidate for B would be chloroethane (C2H5Cl). ### Step 4: Identify Compound A The question states that compound A on chlorination gives compound B. Since we identified compound B as chloroethane (C2H5Cl), compound A must be an alkane that can undergo chlorination to yield chloroethane. **Assumption**: - The simplest alkane that can yield chloroethane upon chlorination is ethane (C2H6). ### Conclusion Based on the deductions made: - Compound A is **C2H6 (ethane)**. ### Final Answer: Compound A is **C2H6 (ethane)**. ---
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