Question

Which of the following orders are correct as per the properties mentioned against each? [NCERT Exemplar]
(a) AS2O3 < SiO2 < P2O3 < SO2 Acid strength.
(b) AsH3 < PH3 < NH3 Enthalpy of vapourisation,
(c) S < O < Cl < F More negative electron gain enthalpy.
(d) H2O > H2S > H2Se > H2Te Thermal stability.

Answer 1

Answer:

b

c

a

d

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Answer 2

Answer:

(b) AsH3 < PH3 < NH3 Enthalpy of vapourisation,

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

(a) AS2O3 < SiO2 < P2O3 < SO2 Acid strength.

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