Chemistry · JEE

Factors affecting equilibrium: concentration, pressure, temperature, the effect of catalyst, Le Chatelier's principle MCQs for JEE

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Q1ChemistryUnit 6: Equilibrium

Which of the following will change the value of the equilibrium constant for the reaction?

N_{2}(g)+O_{2}(g) \leftrightharpoons 2 N O(g)

Q2ChemistryUnit 6: Equilibrium

Q Type your question One of the chief uses of sodium carbonate has been in the conversion of

\operatorname{Ca}(O H)_{2}(s)

to concentrated aqueous solution of NaOH which in turn was used in the manufacture of soap.

\boldsymbol{C a}(\boldsymbol{O H})_{2}(\boldsymbol{s})+\boldsymbol{2} \boldsymbol{N} \boldsymbol{a}^{+}(\boldsymbol{a q})+

\boldsymbol{C O}_{3}^{2-}(\boldsymbol{a q}) \rightleftharpoons \boldsymbol{C a C O}_{3}(\boldsymbol{s})+

\mathbf{2} N \boldsymbol{a}^{+}(\boldsymbol{a} \boldsymbol{q})+\mathbf{2} \boldsymbol{O} \boldsymbol{H}^{-}(\boldsymbol{a} \boldsymbol{q})

1775,

in order to gain independence from the importation of natural

N a_{2} C O_{3},

the French government offered a prize to anyone who could devise a process to prepare

N a_{2} C O_{3}

from NaCl A more economical process but based on the same principle was given by :

Q3ChemistryUnit 6: Equilibrium

The following reaction occurs in the Blast Furnace where ion ore is reduced to iron metal:

\boldsymbol{F e}_{2} \boldsymbol{O}_{3}(\boldsymbol{s})+\boldsymbol{3} \boldsymbol{C O}(\boldsymbol{g}) \rightleftharpoons \boldsymbol{2} \boldsymbol{F} \boldsymbol{e}(l)+

3 C O(g)

Using Le Chatelier's principle, predict which of the following will not disturb the equilibrium?

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