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प्रश्न
Which one among the following metals of the 3d series has the lowest melting point?
विकल्प
Fe
Mn
Zn
Cu
उत्तर
Zn
Explanation:
Metallic bonds in zinc are weak due to the absence of unpaired electrons. As a result, zinc has the lowest melting point.
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संबंधित प्रश्न
How would you account for the following?
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(Atomic nos. : Mn = 25, Cr = 24)
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Although \[\ce{Cr^3+}\] and \[\ce{Co^2+}\] ions have same number of unpaired electrons but the magnetic moment of \[\ce{Cr^3+}\] is 3.87 B.M. and that of \[\ce{Co^2+}\] is 4.87 B.M. Why?
Answer the following question:
Which element of the first transition series has highest third ionisation enthalpy?
Which of the following characteristics of transition metals is associated with their catalytic activity?
