Which of the following does not contain copper
Brass
Bronze
Azurite
Calamine
The element exhibiting most stable $ + \,2$ oxidation state among the following is
Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy
How would you account for the following:
$(i)$ of the $d^{4}$ species, $Cr ^{2+}$ is strongly reducing while manganese $(III)$ is strongly oxidising.
$(ii)$ Cobalt $(II)$ is stable in aqueous solution but in the presence of complexing reagents it is easily oxidised.
$(iii)$ The $d^{1}$ configuration is very unstable in ions.
Correct statement for $CeO_2$ is/are
$(1)$ It is Diamagnetic in nature
$(2)$ It is a good oxidising agen
$(3)$ It is colourless compound
Chloro compound of vanadium has only spin magnetic moment of $1.73\, BM$. This vanadium chloride has the formula: