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Question

Chemistry Question on General Properties of the Transition Elements (d-Block)

Which is the correct thermal stability order forH2E H_2E (E=O, S, Se, Te and Po)?

A

H2S<H2O<H2Se<H2Te<H2PoH_2S< H_2O<H_2Se<H_2Te<H_2Po

B

H2O<H2S<H2Se<H2Te<H2PoH_2O< H_2S<H_2Se<H_2Te<H_2Po

C

H2Po<H2Te<H2Se<H2S<H2OH_2Po<H_2Te<H_2Se < H_2S <H_2O

D

H2Se<H2Te<H2Po<H2O<H2SH_2Se<H_2Te<H_2Po< H_2O <H_2S

Answer

H2Po<H2Te<H2Se<H2S<H2OH_2Po<H_2Te<H_2Se < H_2S <H_2O

Explanation

Solution

The correct option is (C) :H2Po<H2Te<H2Se<H2S<H2OH_2Po<H_2Te<H_2Se < H_2S <H_2O