Which of the following statement about IV group elements ( C to Pb) is not correct

Options

A. The thermal stability of hydrides decreases from `CH_(4)" to "PbH_(4)` as bond enthalpy for M - H bond decreases
B. All form tetra fluorides, tetra chlorides, tetra bromides
C. Only Sn and Pb form dichlorides
D. All form tetra iodides

Answer

D

Explanation

For example `PbI_(4)` does not exist because `Pb^(4+)` ion is string oxidising agent and `I^(-)` ion and gets reduced to `Pb^(2+)` ion