`H-overset(O)overset(||)(C)-Dunderset((50%))overset(HO^(-))to` product of this cannizaro reaction is

Ph-overset(O)overset(||)C-O-CPh_(3) overset(18)overset(H_(3)O^(oplus))rarr Product of this reaction is :

Et-O-overset(O)overset(||)C-CH_(2)-CH_(2)-overset(O)overset(||)C-O-Et overset(EtONa)rarr Major product of this reaction is :

Ph-overset(O)overset(||)(C)-CH_(3)underset(HCl)overset(NaNO_(2))to(A)underset("heat")overset(AC_(2)O)to(B)overset(H_(3)O^(+))to(C) Product ( C) of the above reaction is :

Ph-overset(O)overset(||)(C)-CH_(3) overset(NaNO_(2))underset(HCl)(to) (A) underset("heat")overset(AC_(2)O)(to) (B)overset(H_(3)O^(+))(to)(C) Product (C) of the above reaction is :

H_(3)C-Mg-Br+H_(2)C=CH-overset(O)overset(||)(C)-H overset(H_(3)O^(+))to product?