Read the following passage and answer the questions that follow.Electron-precise compounds have the required number of electrons to write their conventional Lewis structures. All elements of group 14 form such compounds which are tetrahedral in geometry. Electron - rich hydrides have excess of electrons which are present as lone pairs. Elements of groups 15-17 form such compounds. Metallic hydrides are formed by many d-block and f-block elements. These hydrides conduct heat and electricity though not as efficiently as their parent metals do. They are non-stoichiometric. Incorrect statement among the following is

Read the following passage and answer the questions that follow.Electr

1.	Read the following passage and answer the questions that follow.Electron-precise compounds have the required number of electrons to write their conventional Lewis structures. All elements of group 14 form such compounds which are tetrahedral in geometry. Electron - rich hydrides have excess of electrons which are present as lone pairs. Elements of groups 15-17 form such compounds. Metallic hydrides are formed by many d-block and f-block elements. These hydrides conduct heat and electricity though not as efficiently as their parent metals do. They are non-stoichiometric. Incorrect statement among the following is
Answer» The electrical conductivity of CRH is less than that of Chromium. The hydrides of N, O and F have lower boiling points than the hydrides of their subsequent group members. For TiH and ZrH, the LAW of CONSTANT composition does not hold good NiH and PdH are non-stiochiometric hydrides. Answer :B