Question:

Which of the following 3d block element exhibits +2, +3, +4, +5, +6 and +7 oxidation states?

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In the 3d block elements, manganese is the element that exhibits the widest range of oxidation states, ranging from +2 to +7.
Updated On: Mar 11, 2025
  • Titanium
  • Vanadium
  • Chromium
  • Manganese
  • Iron
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The Correct Option is D

Solution and Explanation

In the 3d block elements, the elements show a wide range of oxidation states. Let us analyze the oxidation states of the elements listed:
(A) Titanium (Ti):
Titanium typically exhibits oxidation states of +2, +3, and +4. It does not exhibit the +5, +6, or +7 oxidation states.
(B) Vanadium (V):
Vanadium can exhibit oxidation states of +2, +3, +4, and +5. It does not show +6 or +7 oxidation states.
(C) Chromium (Cr):
Chromium shows +2, +3, +6 oxidation states, but it does not exhibit +4, +5, or +7 oxidation states.
(D) Manganese (Mn):
Manganese is known for exhibiting a wide range of oxidation states, including +2, +3, +4, +5, +6, and +7. 
Therefore, manganese is the correct answer.
(E) Iron (Fe):
Iron exhibits oxidation states of +2 and +3 but does not show +4, +5, +6, or +7 oxidation states.
Thus, the correct answer is option (D), Manganese.

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