CREATE TABLE table_52662 ("Chemical class" CLOB, "Group" CLOB, "Formula" CLOB, "Prefix" CLOB, "Suffix" CLOB, "Example" CLOB)

Which chemical class uses the example Chloroethane (ethyl chloride)?
SELECT "Chemical class" FROM table_52662 WHERE "Example" = 'chloroethane (ethyl chloride)'
SELECT "Chemical class" FROM "table_52662" WHERE "Example" = 'chloroethane (ethyl chloride)'