Chemical & Ionic Equilibrium · JEE Main previous year questions

2014 2 questions

1. Q642014 · 6 Apr 2014 · Shift 1

   For the reaction $\mathrm{S}{\mathrm{O}}_2(\mathrm{g})+\frac{1}{2}{\mathrm{O}}_2(\mathrm{g})\rightleftharpoons \mathrm{S}{\mathrm{O}}_3(\mathrm{g})$. if ${\mathrm{K}}_{\mathrm{p}}={\mathrm{K}}_{\mathrm{C}}(\mathrm{RT}{)}^{\mathrm{x}}$ where the symbols have usual meaning then the value of x is: (assuming ideality)

   1. A.$-1$
   2. B.$-1/2$
   3. C.$1/2$
   4. D.$1$
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   Answer: B

2. Q892014 · 6 Apr 2014 · Shift 1

   Among the following oxoacids, the correct decreasing order of acid strength is :

   1. A.$\mathrm{HCl}{\mathrm{O}}_4>\mathrm{HCl}{\mathrm{O}}_3>\mathrm{HCl}{\mathrm{O}}_2>\mathrm{HOCl}$
   2. B.$\mathrm{HCl}{\mathrm{O}}_2>\mathrm{HCl}{\mathrm{O}}_4>\mathrm{HCl}{\mathrm{O}}_3>\mathrm{HOCl}$
   3. C.$\mathrm{HOCl}>\mathrm{HCl}{\mathrm{O}}_2>\mathrm{HCl}{\mathrm{O}}_3>\mathrm{HCl}{\mathrm{O}}_4$
   4. D.$\mathrm{HCl}{\mathrm{O}}_4>\mathrm{HOCl}>\mathrm{HCl}{\mathrm{O}}_3>\mathrm{HCl}{\mathrm{O}}_2$
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   Answer: A