Nessler’s reagent is
K2Hgl4 + KOH
Permanent magnets are generally made of alloys of
Which oxide of manganese is amphoteric?
Among the following pair of ions, the lower oxidation state in aqueous solution is more stable in
Purple of cassius is
The properties of Zr and Hf are similar because
By annealing, steel
Carbon in wrought iron is present as
Which of the following is called white vitriol?
Coinage metals show the properties of
Which of the following elements does not belong to the first transition series?