if ethanedial (HOC-COH) is teated with excess of HCN (aq) followed by hydrolysis of product results in diacids. How many different diacids would be formed ?

In the following reaction, how many different diols would be formed?

In the following reaction, how many different S_(N)2 products would be formed ?

If the following carbocation undergo hydration, how may different alcohols would be formed?

Consider the following reaction How many different products (including stereoisomers) would be formed ?

If 3-chloromethylhexane is treated with C_(2)H_(5)Ona//C_(2)H_(5)OH, E_(2) elimination reaction takes place predominantly. How many different alkenes would be formed ?