Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: D and F Block Elements

Question:

Which of the following has higher boiling point?

Options:

Cr

Mn

Both have identical melting point

The melting point of Cr and Mn does not exist.

Correct Answer:

Cr

Explanation:

In ground state, Cr has six unpaired electrons which are available for metallic bonding. While for Mn, five unpaired electrons are present.

24Cr : [Ar]4s13d5

25Mn : [Ar]4s23d