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ChemistryNEET 2019Group 15 and 16: nitrogen, oxygen families

The p-Block Elements

Which is the correct thermal stability order for H2E\mathrm{H_2E} (E = O, S, Se, Te, Po)?

  1. A.H2S<H2O<H2Se<H2Te<H2Po\mathrm{H_2S < H_2O < H_2Se < H_2Te < H_2Po}
  2. B.H2O<H2S<H2Se<H2Te<H2Po\mathrm{H_2O < H_2S < H_2Se < H_2Te < H_2Po}
  3. C.H2Po<H2Te<H2Se<H2S<H2O\mathrm{H_2Po < H_2Te < H_2Se < H_2S < H_2O}✓
  4. D.H2Se<H2Te<H2Po<H2O<H2S\mathrm{H_2Se < H_2Te < H_2Po < H_2O < H_2S}

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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From Chemistry › The p-Block Elements › Group 15 and 16: nitrogen, oxygen families — lectures, notes and every past question on it.

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