Which of the following statements is `//` are correct

Options

A. GeO,SnO and PbO are basic and ioinic than the corresponding `GeO_(2), SnO_(2)` and `PbO_(2)`
B. GeO is acidic while SnO and PbO are amphoteric
C. `Ge^(2+)` and `Sn^(2+)` are strong oxidising agents
D. The mixed oxide `PbO_(4)` contains `Pb^(2+)` and `Pb^(4+)` ions

Answer

B, D

Explanation

(BD) Increased stability of lower valent states on descending a group is illustrated by the fact that `Ge^(2+)` and `Sn^(2+)` are strong reducing agents. `Pb_(3) O_(4)` ( red lead ) is `2PbO.PbO_(2)` and thus contains both `Pb^(2)` and `Pb^(4+)` ions