Pick out the incorrect statement.

Options

A. The tendency for catenation is marked by shown by sulphur.
B. Te =C=Te is unknown
C. The + 4 oxidation state is relatively more stable for Se, Te and Po than +6 O.S, but opposite trend holds good for S.
D. `S_2` is diamagnetic, but `O_2` is paramagnetic

Answer

D

Explanation

Like `O_(2), S_(2)`, is also paramagnetic, because it has two unpaired electrons
a). S-S single bond strength is higher than O-O single bond. After oxygen. M-M single bond strength decreases from S to Po.
b). The tendency to form multiple bonds with C, N and O decreases as we descend the group.
c). In heavier elements, the tendency of `ns^(2)` electrons of outermost shell to remain paired and not to participate in bond formation increases as we descend the group.