



Toluene reacts with KMnO\( _4 \)/OH\( ^- \), \(\Delta\) followed by H\( _3 \)O\( ^+ \) to give benzoic acid (Y). Benzoic acid dissolves in NaHCO\( _3 \) due to the formation of sodium benzoate. When benzoic acid reacts with Br\( _2 \)/Fe, it undergoes electrophilic substitution. The -COOH group is a deactivating and meta-directing group. So, the bromine atom will be substituted at the meta position. Thus, X is KMnO\( _4 \)/OH\( ^- \), \(\Delta\) followed by H\( _3 \)O\( ^+ \) and Z is m-bromobenzoic acid.
Which of the following are ambident nucleophiles?
[A.] CN$^{\,-}$
[B.] CH$_{3}$COO$^{\,-}$
[C.] NO$_{2}^{\,-}$
[D.] CH$_{3}$O$^{\,-}$
[E.] NH$_{3}$
Identify the anomers from the following.

The standard Gibbs free energy change \( \Delta G^\circ \) of a cell reaction is \(-301 { kJ/mol}\). What is \( E^\circ \) in volts?
(Given: \( F = 96500 { C/mol}\), \( n = 2 \))