6. 4.0 moles of NaOH are added to 2.0 L of water. After the addition of NaCl,

a) the equilibrium NaOH (aq) $Na+(aq)\; +\; OH-(aq)$ is pushed to the left
b) the solution becomes a stronger electrolyte
c) bleach forms ($OCl-$)
d) the solution's pH increases

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