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divalent groups formed by removing two hydrogen atoms from a hydrocarbon, the free valencies of which are not engaged in a double bond, kahevalentsed rühmad, mis tekivad kahe vesinikuaatomi eemaldamisel süsivesinikuaatomist selliselt, et vabad valentsid ei moodusta kaksiksidet
hüdrokarbüleenrühmad . Keemiaterminite baas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kem/h%C3%BCdrokarb%C3%BCleenr%C3%BChmad/1/est (01.08.2026)