Description : How many molecules are present in 3 moles of methanal?
Last Answer : 3 moles x 6.02x10^23 molecules/mole = 1.8x10^24 molecules
Description : Unconjugated bilirubin in serum is soluble in (A) Water (B) Alkalis (C) Acids (D) Methanal
Last Answer : Answer : D
Description : Why does methanal undergoes Cannizaro’s rxn ?
Last Answer : Ans. Because it does not possesses hydrogen atom. Only those aldehydes can undergo Cannizaro reaction which do not possess hydrogen atoms.
Description : Why does methanal not give aldol condensation while ethanol gives ?
Last Answer : Ans. This is because only those compounds which have hydrogen atoms can undergo aldol reaction. Ethanol possesses -hydrogen and undergoes aldol condensation. Methanal has no hydrogen atoms, hence does not undergo aldol condensation.
Description : Which of the following will have the highest boiling point? (a) Methanal (b) Ethanal (c) Propanal (d) Butanal
Last Answer : Butanal