Equilibrium Tes...

The following reaction occurs in the blast furnace where iron ore is reduced to iron metal:
$$F{  e}_{ 2 }{  O}_{ 3 }(s)+3CO(g)\rightleftharpoons Fe(l)+3C{ O}_{2  }(g)$$
Using the Le Chatelier's principle, predict which one of the following will not disturb the equilibrium?

In an aqueous solution of volume 500 mL, the $$[Cu^{2+}]$$ was $$xM$$ when the given reaction reached equilibrium. When 500 mL of water is further added, at the equilibrium $$[Cu^{2+}]$$ will be:

$$N_2(g)+3H_2(g) \rightleftharpoons 2NH_3(g)$$ for the reaction initially the mole ratio was $$1:3$$ of $$N_2:H_2$$. At equilibrium  $$50\%$$ of each has reacted. If the equilibrium pressure is p, the partial pressure of $$NH_3$$ at equilibrium is:-

Which of the following salt solution will act as a buffer?

$$\frac { N } { 10 }$$ acetic acid was titrated with $$\frac { N } { 10 }$$ NaOH.When $$25 \% , 50 \%$$ and $$75$$$$\%$$ of titration is over then the pH of the solution will be $$: \left[ \mathrm { K } _ { a } = 10 ^ { - 5 } \right]$$

In decimolar solution, CH$$_{3}$$COOH is ionised to the extent of 1.3 %. If $$log 1.3 = 0.11$$, what is the pH value of the solution?

In which case, increase of pressure will favour the reaction towards forward ?

Ionic conductances of hydrated $$M^{+}$$  ions are in the order -

In a vessel containing $$N_{2},H_{2}$$ and $$NH_{3}$$ at equilibrium, some helium gas in introduced so that the total pressure increases while temperature and volume remain constant. According to Le Chatelier's principle, the dissociation of $$NH_{3}$$ :

Degree of dissociation of 0.1 M HCN solution is 0.01%. Its ionisation constant would be