5-formylhex-2-en-3-one

5-methyl-4-oxohex-2-en-5-al

3-keto-2-methylhex-5-enal

3-keto-2-methylhex-4-enal

electrophile is a negatively charged species and form a bond by accepting a pair of electrons from another electrophile

electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile

electrophile can be either neutral or positively charged species and can form a bond by accepting a pair of electrons from a nucleophile

electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile.

chromatography

crystallisation

steam distillation

sublimation.

III only

Both I and III

Both I and II

Both II and III