Advertisements
Advertisements
प्रश्न
How would you account for the following?
Transition metals exhibit variable oxidation states.
उत्तर
(i) The variable oxidation states of transition elements are due to the participation of ns and (n−1)d-electrons in bonding. Lower oxidation state is exhibited when ns-electrons take part in bonding. Higher oxidation states are exhibited when (n − 1) d-electrons take part in bonding.
APPEARS IN
संबंधित प्रश्न
Account for the following:
Cu+ ion is unstable in aqueous solution.
Calculate the ‘spin only’ magnetic moment of \[\ce{M^{2+}_{ (aq)}}\] ion (Z = 27).
What are inner transition elements?
Give reasons: E° value for the Mn3+/Mn2+ couple is much more positive than that for Fe3+/Fe2+.
Transition elements show high melting points. Why?
Identify the metal and justify your answer.
Carbonyl \[\ce{M(CO)5}\]
The element with atomic number 53 belongs to
The standard electrode potentials of four elements A, B, C and D are – 3.05, – 1.66, – 0.40 and + 0.80. The highest chemical reactivity will be exhibited by
Which one among the following metals of the 3d series has the lowest melting point?
Write the ionic equation for reaction of KI with acidified KMnO4.
