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Why SO2 is a gas and …

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Why SO2 is a gas and SeO2 is solid ????? Please aannsswweerrrrr.
  • 2 answers

Armaan Gur_Jar 5 years, 9 months ago

Thanks Yogita

Yogita Ingle 5 years, 9 months ago

SO2 is a gas whereas SeO2 is solid. This is because SeO2 has a chain polymeric structure consisting of alternate selenium and oxygen atoms. This one dimensional chain forms strong interactions thus it exists as solid. Whereas SO2 is molecular and no such strong interactions is present between them. It forms discrete units. Thus it exists as gas.

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