The dand fblock elements - Result Question 11

####11. Which one of the following does not correctly represent the correct order of the property indicated against it?

[2012 M]

(a) Ti<V<Cr<Mn : increasing number of oxidation states

(b) Ti3+<V3+<Cr3+<Mn3+ : increasing magnetic moment

(c) Ti<V<Cr<Mn : increasing melting points

(d) Ti<V<Mn<Cr : increasing 2nd  ionization enthalpy

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Solution:

  1. (c) The melting points of the transition elements first rise to a maximum and then fall as the atomic number increases, manganese have abnormally low melting points.


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