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(i) How will you convert the following: ...

(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

Text Solution

Verified by Experts

(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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Knowledge Check

  • Propan-2-ol can be converted into propan-1-ol by using the following sequence ….. of reagents

    A
    conc. `H_2SO_4, H_2O//H^+`
    B
    conc. `H_2SO_4,` Hbr/Peroxide, aq. NaOH
    C
    conc. `H_2SO_4`, Hbr, aq. NaOH
    D
    Conc. `H_2SO_4` Hg`(OCOCH_3)_2, NaBH_4`

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