Which set of ions exhibit specific colours? (Atomic number of Sc = 21, Ti = 22, V=23, Mn =
25, Fe = 26, Ni = 28 Cu = 29 and Zn =30)
a) Sc3+, Ti4+, Mn3+
b) Sc3+, Zn2+, Ni2+
c) V
3+, V2+, Fe3+
d) Ti3+, Ti4+, Ni2+
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Answer:
option c is the answer
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