Consider the following chemical| Hydrocarbons| JEE MAIN 2021

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JEE MAIN 2021

25-02-21 S1

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Consider the following chemical reaction.
$\mathrm{CH} \equiv \mathrm{CH} \xrightarrow[\text { (2)CO, } \mathrm{HCl}, \mathrm{AlCl}_3]{\text { (1)Red hot } \mathrm{Fe} \text { tube, } 873 \mathrm{~K}}$ Pr oduct
The number of sp2 hybridized carbon atom(s) present in the product is ______.

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