A nitrate when mixed with common salt gives a white precipitate which is soluble in dilute $N{H_4}OH$. It is the nitrate of
Copper
Mercury
Silver
Gold
Assertion : Magnetic moment of $Dy$ is highest among lanthanoids.
Reason : Orbital motion contributes magnetic moment.
Which one of the following does not correctly represent the order of the property indicated against it ?
An ion of definite magnetic moment (spin only) is
Elements which generally exhibit multiple oxidation states and whose ions are usually coloured are
The highest magnetic moment is shown by the transition metal ion with the outer electronic configuration