(b) Name a transition element in 3d series which is colourless in both atomic state and oxidation state. 1
Answers
Answered by
1
Answer:
Manganese (3d
5
4s
2
) shows maximum number of oxidation state as its atoms have unpaired electrons in 3d orbitals. It shows all the oxidation state from +2 to +7.
(ii) Cu has positive E
(M
2+
/M)
o
value, as high energy (Δ
a
+Δ
i
H) to transform Cu(s) to Cu
2+
(aq) is not balanced by hydration enthalpy.
(iii) Mn
3+
is stronger oxidising agent as the charge from Mn
3+
to Mn
2+
results in half filled, d
5
configuration which has extra stability.
(iv) Europium, (Eu
2+
) is formed by losing the two s electrons and its (Xe)f
7
configuration acounts its formation.
(v) MnO
4
−
+8H
+
+5e
−
→Mn
2+
+4H
2
O
Answered by
0
Answer:
manganese
Explanation:
3d 5 4s2 pls mark me as brainliest and flw me
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