Chemistry - CHEMICAL BONDING Question with Solution | TestHub
ChemistryCHEMICAL BONDINGIonic BondMedium2 minQB
ChemistryMediumsingle choice
Size of Na+ and Cu+ are 95 pm and 96 pm respectively. Select best explanation for given M.P.
NaCl M.P. = 801°C CuCl M.P. = 422°C
Options:
Answer:
C
Solution:
The two cations have nearly the same size and charge.
The 18e- (3d10) core of Cu+ shields the nuclear charge poorly, so it polarises Cl- more.
More covalent character gives CuCl a lower melting point.
Answer: (C).
Stream:JEESubject:ChemistryTopic:CHEMICAL BONDINGSubtopic:Ionic Bond
⏱ 2mℹ️ Source: QB
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