In the reaction CaC_2 + H_2O to A xrightarrow | vedclass

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(A) The reaction of calcium carbide with water produces acetylene $(A)$: $CaC_2 + 2H_2O 	o C_2H_2 + Ca(OH)_2$ Acetylene $(C_2H_2)$ undergoes hydratio

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$C_2H_2$ and $CH_3CHO$

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(A) The reaction of calcium carbide with water produces acetylene $(A)$: $CaC_2 + 2H_2O 	o C_2H_2 + Ca(OH)_2$ Acetylene $(C_2H_2)$ undergoes hydration in the presence of $dil. H_2SO_4$ and $HgSO_4$ to form an unstable enol intermediate,which tautomerizes to form acetaldehyde $(B)$: $C_2H_2 + H_2O \xrightarrow{H_2SO_4/HgSO_4} [CH_2=CHOH] 	o CH_3CHO$

In the reaction $CaC_2 + H_2O \to A \xrightarrow{H_2SO_4/HgSO_4} B$,what are $A$ and $B$?

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