🎯 What you'll practice: A written recap of the 12-question Chemistry MCQ Sprint — atomic structure, organic chemistry, and equilibrium.
1-B 2-C 3-A 4-B | 5 = decreases 6 = ketone 7 = addition, because the C=C double bond readily opens up to add atoms across it (e.g. with H2, Br2, HX) 8 = it means the equilibrium lies far toward the products — the reaction essentially goes to near-completion 9 = no — a catalyst speeds up both the forward and reverse reactions equally, so it only helps the system reach equilibrium faster without changing Kc or the equilibrium position | 10 = the reactant side has 1+3=4 moles of gas while the product side has only 2 moles of NH3; increasing pressure shifts equilibrium toward the side with fewer gas moles to relieve that pressure, so it favours the 2NH3 side and increases ammonia yield.