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CH(3)CHO+HCNrarrX overset(H(3)O^(+))rarr...

`CH_(3)CHO+HCNrarrX overset(H_(3)O^(+))rarr`
Which type of polymer is formed from the organic compound Y? 

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X = acetaldehyde cyanohydrin , Y = lactic acid. Hydrolysis of compound X, acetaldehyde cyanohydrin with a dilute mineral acid gives compound Y, lactic acid.
The condensation homopolymer of lactic acid is called polylactic acid. It is a polyester and is a biodegradable polymer.
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