H20 is a nucleophile it has a free lone pair of electrons which is a main feature of nucleophile, however, it is a weak nucleophile

Indicator will changes the colour according to H+ ion present in a solution.

Reagent : consist of electrophile and nucleophile. It help in the attachment of nucleophile to the electrophile and electrophile to the nucleophile.

Mirza

The phonoxide anion is the nucleophile.

CH3--(benzene ring)--O- AKA ArO-

A reaction with alkyl halides in NaI with acetone is by the Sn2 mechanism. The rate for an Sn2 mechanism is directly proportional to the concentration of the nucleophile:

rate = k[nucleophile][alkylhalide]

If the iodine solution (the nucleophile) is half as concentrated, then the rate will also be halved.

rate = k [nucleophile]/2 [alkyl halide]

Yes it is a nuclephile.It has a lone pair