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Explain why: is more stable than towards oxidation to state. (At. no. of , ) Transition elements…
Explain why:
(i)
$\text{Mn}^{2+}$ is more stable than $\text{Fe}^{2+}$ towards oxidation to $+3$ state. (At. no. of $\text{Mn} = 25$, $\text{Fe} = 26$)
(ii)
Transition elements usually form coloured ions.
(iii)
Zr and Hf exhibit similar properties. (At. no. of $\text{Zr} = 40$, $\text{Hf} = 72$)
Answer
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From ISC 2018 Chemistry Paper 1, question 13(a).