16169 One of the following metals forms a volatile carbonyl compound and this property is taken advantage of for its extraction. This metal is
(b)Nickel; \(Ni + 4CO\, \to \,[Ni{(CO)_4}]\) (volatile)
16170 The coinage metals are
(c)Copper, silver and gold; all the three were used for making coins.
16171 Which of the following structure is that of a coinage metal
(b) \(2,\, 8, \,18, \,1 = Cu\)
16172 An elements in \(+3\) oxidation state has the electronic configuration \((Ar)3{d^3}\). Its atomic number is
It’s Obvious.