KCET · Chemistry · d and f Block Elements
Which of the following is correct with respect to melting point of a transition element?
- A \(\mathrm{V}>\mathrm{Cr}\)
- B \(\mathrm{Cr}>\mathrm{Mn}\)
- C \(\mathrm{Mn}>\mathrm{Fe}\)
- D \(\mathrm{Ti}>\mathrm{V}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Cr}>\mathrm{Mn}\)
Step-by-step Solution
Detailed explanation
In general, the melting points of transition
elements increases across a period from left to right due to increasing atomic number and the corresponding increase in effective nuclear charge.
Among the elements mentioned in the options, chromium \((\mathrm{Cr})\) has a higher melting point compared to manganese \((\mathrm{Mn})\). It is because chromium has a larger atomic number and a higher effective nuclear charge. Which leads to stronger metallic bonding and higher melting temperatures.
elements increases across a period from left to right due to increasing atomic number and the corresponding increase in effective nuclear charge.
Among the elements mentioned in the options, chromium \((\mathrm{Cr})\) has a higher melting point compared to manganese \((\mathrm{Mn})\). It is because chromium has a larger atomic number and a higher effective nuclear charge. Which leads to stronger metallic bonding and higher melting temperatures.
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