HELP!!!!!!!

[Izzah1992]

Can you please explain Mcq's 18,22,25,26,28 and 40 from may june 2003...i would be grateful.

 

[duffer geek]

18 C lime water i guess its Ca(OH)2
22 look the compound is CH3CH2CH=CHCH2CH2OH
the terminal OH will be oxidized to acid
the double bond ll break and form first an aldehyde then an acid ao that the answer is D
25 D cuz CN always undergo nucleophilic reactions