Ethylene on reaction with `Br_2` in methanol forms

B_(2)H_(6) on reaction with methanol does not form

Glucose on reaction with Br_(2) water gives

Ethylene reacts bromine to form-

When tetramethyl ammonium hydroxide is heated strongly, it yields methanol and trimethylamine . How is methanol formed : To what general class of reaction does this belong ?

Benzoic acid is treated with SOCl_2 and the product (X) formed is reacted with ammonia to give (Y). (Y) on reaction with Br_2 and KOH gives (Z). (Z) in the reaction is