Examlex
In each set below, select the letter of the sentence in which commas are used correctly. In which sentence are commas used correctly?
PhCOCH
A general formula shorthand for compounds where a benzene ring (indicated by Ph, standing for phenyl) is attached to a carbonyl group (CO) and an additional unspecified group (CH), leading to a variety of possible chemical structures.
Cyclopentanecarboxylic Acid
A cycloalkane derived carboxylic acid, with the carboxyl group attached to a five-membered ring.
Reagents
Substances or compounds used in chemical reactions to cause or analyze a chemical change.
Reaction
An action through which one or more starting materials, or reactants, are altered to yield one or more new substances, termed products.
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