Esters give many flowers their pleasant odor.
An " fragrant aroma" or a "perfume".
Odor denotes a bad smell and aroma denotes a pleasant one.
it should be a effective antimicrobial agent and should have a pleasant odor
NO2 is a brown gas with a strong, unpleassant odor while NO is a colorless gas with a light, pleasant odor. NO2 is also toxic.
Hibiscuses do have a smell to them but it's a pleasant one. The smell reminds me of Rose of Sharon.
Yes carnations smell pleasant, spicy and sweet, a little like cloves.
The word "aroma" is usually used to describe a pleasant smell.
Asafoetida is a pungent spice used in India. It has a more pleasant odor when cooked than when consumed raw.
The noun scent is a singular, common, concrete noun; a word for a usually pleasant odor, a thing.
Carboxylic acids have often not very pleasant smelling. Esters smell sweeter, often fruity.
Bromobenzene is a clear, colorless liquid with a pleasant odor. It is used as a solvent and motor oil additive, and in making other chemicals.