Home › NEET UG › chemistry › c11redox_oxnumber_stock › Per NCERT §7.3 Problem 7.3 (Stock notation), the…
Per NCERT §7.3 Problem 7.3 (Stock notation), the iron in Fe₂O₃ is best written with which Roman numeral?
AFe(I)
BFe(IV)
CFe(III)
DFe(II)
Answer & Solution
Correct answer: C. Fe(III)
NCERT Problem 7.3: O = −2 ⇒ each Fe = +3, so Fe₂(III)O₃ in Stock notation.
Related questions
Per NCERT §7.3 (fractional ox. numbers box), the AVERAGE oxidation number of S in S₄O₆²⁻ (Per NCERT §7.3 (highest oxidation states), the highest oxidation state of chlorine in its Per NCERT §7.3 (Stock notation), MnO₂ is best written as which formula?Per NCERT §7.3 rules, the oxidation number of Mn in KMnO₄ is which?Per NCERT §7.3 rules, the oxidation number of chromium in K₂Cr₂O₇ is which?Per NCERT §7.3 rules, the oxidation number of sulphur in H₂SO₄ is which?Per NCERT §7.3 (rule 1), the oxidation number of an atom in any element in its FREE / UNCOPer NCERT §7.3 (rule 4), the oxidation number of hydrogen in a binary metal HYDRIDE (e.g.