1.

Consider an esterification of isotopically labelled carboxylic acid : CH_3 -overset(O) overset(||) C -overset( 18) (OH) + C_2H_5OH overset(H^(+))to (A) and (B)Compounds (A) and (B) respectively are:

Answer»

`CH_3-OVERSET(O) overset(||) C-overset(18) (OC_2H_5) , H_2O `
`CH_3-overset(O) overset(||) C -OC_2H_5, H_2O^(18) `
`CH_3-overset(O) overset(||) C-OC_2H_5,H_2O`
` CH_3- overset( O) overset(||) C- overset(18) (OC_2) H_5, H_2O^(18) `

ANSWER :B


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