If terpenoids are soluble in NH3, gives effervescence with NaHCO3, indicates the presence of

(a)  

kuhn roth method is used to identify the number of

(a)  

(a)   method is used for identifying double bonds determining the nature of end groups in terpenoids

Conyrine on oxidation with KMnO4

(a)  

In Bergmann synthesis, 2-methylpyridine was converted to the corresponding alkyl lithium compound using phenyl lithium. Nucleophilic substitution using bromo ethane was then followed by reduction using (a)   to give coniine

Citral on reduction gives

(a)  

Nicotine zinc chloride when heated with lime yields

(a)  

Piperonal on oxidation gives

(a)