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Question

Consider the following statements
(i) Common oxidation state of Pr, Nd, Tb and Dy is +4 state.
(ii) Zr4+ and Hf4+ posses almost the same ionic radii.
(iii) Ce4+ can act as an oxidizing agent.
Which of the above is/are true?

A
(i) and (iii)
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B
(ii) and (iii)
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C
(ii) only
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D
(i) and (ii)
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