MCQ
Atoms combine through the :
- AInteraction of protons
- BPresence of catalyst
- ✓Interaction of electrons
- DRise in temperature
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for the above reaction at $298 K , K _{ c }$ is found to be $3.0 \times 10^{-59}$. If the concentration of $O _{2}$ at equilibrium is $0.040 M$ then concentration of $O _{3}$ in $M$ is ...... .