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NEET UG CHEMISTRY MCQ: Equilibrium

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Application +4 | -1
The reaction, 2A(g)+B(g)⇋3C(g)+D(g)2{\mathrm{A}_{\left( \mathrm{g} \right)}} + {\mathrm{B}_{\left( \mathrm{g} \right)}}\leftrightharpoons3{\mathrm{C}_{\left( \mathrm{g} \right)}} + {\mathrm{D}_{\left( \mathrm{g} \right)}} is begun with the concentration of AA and BB both at an initial value of 1.00  M.1.00\;M. When equilibrium is reached, the concentration of DD is measured and found to be 0.25  M0.25\;M. The value for the equilibrium constant for this reaction is given by the expression :
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Correct option: B
[(0.75)3(0.25)]÷[(0.50)2(0.75)]\left[ {{{\left( {0.75} \right)}^3}\left( {0.25} \right)} \right] \div \left[ {{{\left( {0.50} \right)}^2}\left( {0.75} \right)} \right]
Option B is correct because it accurately represents the equilibrium constant expression based on the changes in concentration given the initial concentrations and the equilibrium concentration of D.

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