Find out number of transformation among following which involves the change of hybridisation of underlined atom. (a) H2O + H^+ - H3O^+ (b) NH3 + BF3 - NH3.BF3 (c) XeF6 - XeF5^+ + F^- (d) 2PCl5 - P

Question

Find out number of transformation among following which involves the change of hybridisation of underlined atom. (a) H2O + H^+ -> H3O^+ (b) NH3 + BF3 -> NH3.BF3 (c) XeF6 -> XeF5^+ + F^- (d) 2PCl5 -> PCl4^+ + PCl6^- (e) CH3 — CH3 -> CH3^- + CH3^+

Prashant Kotian · Accepted Answer

Correct answer: 3. Step 1: Classify the structural types of the given oxides: CO, CO2, and P2O5 form molecular crystals held by weak intermolecular forces. Step 2: SiO2 (silica) forms a giant three-dimensional covalent network where each silicon atom is tetrahedrally bonded to four oxygen atoms. Step 3: Breaking these strong network covalent bonds requires a vast amount of energy, resulting in a very high melting point compared to molecular oxides.

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