Which is a stronger reducing agent Cr²⁺ or Fe²⁺ and why?

Solution

Cr²⁺ is strong reducing agent than Fe²⁺.
Reason: d⁴ → d⁵ occurs in case of Cr²⁺ to Cr³⁺.

But d⁶ → d⁵ occurs in case of Fe²⁺ to Fe³⁺. In a medium (like water) d³ is more stable as compared to d⁵.

Some More Questions From The d-And-f-Block Elements Chapter

Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

On what ground can you say that scandium (Z = 21) is a transition element but zinc (Z = 30) is not?

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The D-And-f-Block Elements

Which is a stronger reducing agent Cr²⁺ or Fe²⁺ and why?

Some More Questions From The d-And-f-Block Elements Chapter

Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

On what ground can you say that scandium (Z = 21) is a transition element but zinc (Z = 30) is not?

The outer electronic configuration of copper is 3d¹⁰ 4s¹, yet it is considered transition element. Why?

Why the melting points of transition elements are high?

Why Zn, Cd and Hg are not regarded as transition elements?

Name the first element of 3rd transition series.

Though copper, silver and gold have completely filled sets of d-orbitals yet they are considered as transition metals. Why?

Why are transition elements so named?

Why are transition elements known as d-block elements?

Write the general electronic configuration of d-block elements.

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The D-And-f-Block Elements

Which is a stronger reducing agent Cr2+ or Fe2+ and why?

Some More Questions From The d-And-f-Block Elements Chapter

Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

On what ground can you say that scandium (Z = 21) is a transition element but zinc (Z = 30) is not?

The outer electronic configuration of copper is 3d10 4s1, yet it is considered transition element. Why?

Why the melting points of transition elements are high?

Why Zn, Cd and Hg are not regarded as transition elements?

Name the first element of 3rd transition series.

Though copper, silver and gold have completely filled sets of d-orbitals yet they are considered as transition metals. Why?

Why are transition elements so named?

Why are transition elements known as d-block elements?

Write the general electronic configuration of d-block elements.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Which is a stronger reducing agent Cr²⁺ or Fe²⁺ and why?

The outer electronic configuration of copper is 3d¹⁰ 4s¹, yet it is considered transition element. Why?