Which of the following is a representative element?
(A) Zn
(B) Sr
(C) Cu
(D) Fe

Which of the following alloys contain only Cu and Zn ?

Which of the following alloys contain (s) Cu and Zn?

Which of the following ions has the highest magnetic moment ? Cr^(3+) , Fe^(2+) ., Mn ^(2+) , Cu ^(2+) , Zn^(2+)

Fe can displace which of the following ions from their aqueous solutions? (a) Na^(+) (b) Zn^(2+) (c) Cu^(2+) (d) Ag^(+)

The colourless ion among the following is (A) Mn^(2+) , B) Cu^(+) (C) Cr^(3+) (D) Fe^(2+)