Which of the following orders are correct as

Question:

Which of the following orders are correct as per the properties mentioned against

each?

(i) As2O3< SiO2< P2O3< SO2 Acid strength.

(ii) AsH3< PH3< NH3 Enthalpy of vaporization.

(iii) S < O < Cl < F More negative electron gain enthalpy

(iv) H2O > H2S > H2Se > H2Te Thermal stability.

Solution:

Option (i) and (iv) are the answers.

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