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🧩 Chemistry MCQ Sprint Recap

Chapter: Chemistry · Level ★★★ · Time: 25 min
SCORE___ / 20
NameClassDate
After this worksheet you can
Recall atomic trendsRecall functional groupsRecall reaction typesRecall equilibrium rules
📚 Quick Recap

🎯 What you'll practice: A written recap of the 12-question Chemistry MCQ Sprint — atomic structure, organic chemistry, and equilibrium.

🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4

1Atomic number = number of:
2-CHO is the functional group of:
3At equilibrium, forward and reverse rates are:
4Increasing pressure on a gas equilibrium shifts it toward the side with:

🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11

5Across a period, atomic radius from left to right.
6A secondary alcohol oxidises to a .
7What type of reaction do alkenes typically undergo, and why?
8What does a Kc value much greater than 1 tell you about a reaction?
9Does adding a catalyst change the value of Kc? Explain.

🚀 Section C · Challenge ● CHALLENGE 5

10In the Haber process (N₂ + 3H₂ ⇌ 2NH₃), explain why high pressure favours ammonia yield, using mole counts on each side of the equation.
💭 Reflection — the most useful thing I learned:
A ___/4   B ___/11   C ___/5   Total ___/20 Teacher's Signature Parent's Signature
✂ answer key — fold or cut before handing out

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.

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