Identify the ODD term in each set and name the CATEGORY to which the remaining three belong:

(i) Auxin, Ethylene, Adrenaline, Cytokinin

(ii) Tympanum, Ear ossicles, Auditory canal, Pinna

(iii) Syringes, Soiled dressings, Discarded needles, Household detergents

(iv) Exophthalmic Goiter, Simple Goitre, Cretinism, Myxoedema

(V) Adenine, Guanine, Creatinine, Cytosine

(i) Odd term — Adrenaline
Auxin, Ethylene, Cytokinin — Plant hormone

(ii) Odd term — Pinna
Tympanum, Ear ossicles, Auditory canal — Parts of internal ear

(iii) Odd term — Household detergents
Syringes, Soiled dressings, Discarded needles — Biomedical wastes

(iv) Odd term — Exophthalmic Goiter
Simple Goitre, Cretinism, Myxoedema — Hypothyroidism

(v) Odd term — Creatinine
Adenine, Guanine, Cytosine — Nitrogenous bases