identification of characteristic bonds in compounds

explain how to figure this problem

for each compound, identify the characteristic bonds and the predicted cm-1 values for those bond stretches:

(1)benzophenone (3 characteristic bonds)

(2)pentaerythritol (3 characteristic bonds)

(3)benzyl alcohol (5 characteristic bonds)

(4)isopropyl acetate (4 characteristic bonds)

(5)tert-butyl methyl ether (2 characteristic bonds)

(6)pentane (1 characteristic bond)

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

answer: they produce more slow than unicellular organisms.

i'm wiling to try and you : )