Chemistry - CHEMICAL BONDING Question with Solution | TestHub
Which of the following statement is/are correct
Options:(select one or more)
Answer:
Solution:
(A) BeO + CCl₄ gives anhydrous BeCl₂ - Correct
BeO reacts with carbon tetrachloride at high temperature to form anhydrous BeCl₂.
(B) Above 1200°C BeCl₂ is linear, Be is sp-hybridised - Correct
In the gaseous state at high temperature, BeCl₂ exists as a **linear monomer (Cl–Be–Cl)** with **sp hybridization.
(C) Below 1200°C BeCl₂ exists as dimer, Be is sp² hybridised - Correct
It forms a dimeric structure (Be₂Cl₄) with bridging Cl atoms, and Be becomes sp² hybridized.
(D) Solid BeCl₂ is polymeric with 3c–4e bonds and planar structure - Incorrect
Solid BeCl₂ is polymeric with 3c–4e bonds, but the structure is not completely planar; it is a chain-like 3D structure, meaning not all atoms lie in the same plane.