Which of the following orders mentioned against each is not correct? a. \( \mathrm{As}_{2} \math...

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Which of the following orders mentioned against each is not correct?
a. \( \mathrm{As}_{2} \mathrm{O}_{3}<\mathrm{SiO}_{2}<\mathrm{P}_{2} \mathrm{O}_{3}<\mathrm{SO}_{2} \) Acid strength
b. \( \mathrm{AsH}_{3}<\mathrm{PH}_{3}<\mathrm{NH}_{3} \) Enthalpy of vaporization
c. \(S<O<C l<F\) More negative electron gain enthalpy
d. \( \mathrm{H}_{2} \mathrm{O}>\mathrm{H}_{2} \mathrm{~S}>\mathrm{H}_{2} \mathrm{Se}>\mathrm{H}_{2} \mathrm{Te} \) Thermal stability
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