JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
What is the correct order of the following elements with respect to their density ?
- A \(Cr < Zn < Co < Cu < Fe\)
- B \(Zn < Cu < Co < Fe < Cr\)
- C \(Zn < Cr < Fe < Co < Cu\)
- D \(Cr < Fe < Co < Cu < Zn\)
Answer & Solution
Correct Answer
(C) \(Zn < Cr < Fe < Co < Cu\)
Step-by-step Solution
Detailed explanation
\(Density /g cm^{-3}\) \(\begin{array}{*{20}{c}} {Zn}& < &{Cr}& < &{Fe}& < &{Co}& < &{Cu} \\ \downarrow &{}& \downarrow &{}& \downarrow &{}& \downarrow &{}& \downarrow \\ {7.1}&{}&{7.19}&{}&{7.8}&{}&{8.7}&{}&{8.9} \end{array}\)
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