1.In the following reaction,H3C−C≡CH→873 Kred hot iron tubeA\mathrm{H_3C{-}C \equiv CH \xrightarrow[\text{873 K}]{\text{red hot iron tube}} A}H3C−C≡CHred hot iron tube873 KAthe number of sigma (σ\sigmaσ) bonds present in the product AAA is:a.21b.9c.24d.18Login to continueOnly logged in users canattempt or see the solution.