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Transcription of this question: Ethyne, C2H2, reacts with oxygen in welding torches.(a) Write an equation for the complete combustion of ethyne.0)(ii)Deduce the Lewis (electron dot) structure of ethyne.Compare, giving a reason, the length of the bond between the carbon atoms inethyne with that in ethane, C2H6.(iii) Identify the type of interaction that must be overcome when liquid ethyne vaporizes. (c)Ethyne reacts with steam.(g) + H20(g) C2H40(g)Two possible products are:and0)(ii)(iii)Product A contains a carbon—carbon double bond. State the type of reactionsthat compounds containing this bond are likely to undergo.State the name of product B, applying II_JPAC rules.Determine the enthalpy change for the reaction, in kJ, to produce A using section11 of the data booklet.(iv) The enthalpy change for the reaction to produce B is —213kJ.Predict, giving a reason, which product is the most stable.(v) The IR spectrum and low resolution IHNMR spectrum of the actual productformed are shown.0.80.60.4023000IR spectrum2000Wavenumber / cm-l1000[Source: NIST Chemistry WebBook SRD 69https:mwebbook_nist_gov/chemistry DOE https:/dOi.org/IO. 18434/T4D303http:Wwebb03k_nist_govcgifinchi10Chemical shift / ppmDeduce whether the product is A or B, using evidence from these spectratogether with sections 26 and 27 of the data booklet.Identity of product:One piece of evidence from IR:One piece of evidence from IHNMR:(d)Product B, CH3CHO, can also be synthesized from ethanol.(i) Suggest the reagents and conditions required to ensure a good yield of product B.Reagents:Conditions:(ii)(iii)Deduce the average oxidation state of carbon in product B.Explain why product B is water soluble.