1.

(i) How will you convert the following: a. Propanone to propan -2-ol b. Ethanal to 2-hydroxy propanoic acid c.Toluence to benzoic acid (ii) Distinguish the following pairs of compounds: a. Pentan-2-one and pentan-3-one b. Ethanal and propanal

Answer»

SOLUTION :(i)
a. `underset("Propanone")(CH_(3)-overset(O)overset(||)(C)-CH_(3))underset("REDUCTION")overset(LiAlH_(4))(to)underset("Propan-2-ol")(CH_(3)-overset(OH)overset(|)(CH)-CH_(3))`

(ii) a. Pentane -2-one GIVES yellow ppt of iodoform in Idoform TEST, while pentane-3-one does not give it.
`CH_(3)CH_(2)CH_(2)-overset(O)overset(||)(C)-CH_(3)+3NaOHtoCH_(3)CH_(2)CH_(2)COONa+underset("Yellow ppt")(CHI_(3))darr+2NaOH`
b. Ethanal will give iodoform test, while propaal will not give it.


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