2021 SASS Chem P1 Topical Ans

_______________________________________________________________________________________________________________________________________________________________________________________ Page 1 ST ANDREW’S SECONDARY SCHOOL CHEMISTRY 6092 2021 GCE O-LEVEL TOPICAL REVISION PACK MULTIPLE-CHOICE QUESTIONS A Kinetic Particle Theory J Salts and Qualitative Analysis B Experimental Techniques K Redox Reactions C Purification and Separation L Metals D Elements, Mixtures and Compounds M Electrolysis E Atomic Structure N The Periodic Table F Ionic Bonding O Energy Changes G Covalent and Metallic Bonding P Speed of Reaction H The Mole and Chemical Calculations Q Ammonia I Acids and Bases R The Atmosphere and Environment 𝛀 Miscellaneous ANSWERS A Kinetic Particle Theory 1 2 3 4 5 6 7 8 9 10 C D C C B A C C D C B Experimental Techniques 1 2 3 4 5 6 7 8 9 10 D C D D B B A D A C C Purification and Separation 1 2 3 4 5 6 7 8 9 10 A D B B C D B A B B D Elements, Mixtures and Compounds 1 2 3 4 5 6 7 8 9 10 A A D C A B B A A D E Atomic Structure 1 2 3 4 5 6 7 8 9 10 C D C D D B A C A A

_______________________________________________________________________________________________________________________________________________________________________________________ Page 2 F Ionic Bonding 1 2 3 4 5 6 7 8 9 10 D C B A C B B C B C G Covalent and Metallic Bonding 1 2 3 4 5 6 7 8 9 10 A B A C C B A B D A H The Mole and Chemical Calculations 1 2 3 4 5 6 7 8 9 10 D B D B B A C B B C I Acids and Bases 1 2 3 4 5 6 7 8 9 10 A D C C B C D C C C J Salts and Qualitative Analysis 1 2 3 4 5 6 7 8 9 10 C D A C D A D D A D K Redox Reactions 1 2 3 4 5 6 7 8 9 10 A C B C A B A C B C L Metals 1 2 3 4 5 6 7 8 9 10 D C A B A D C C D D M Electrolysis 1 2 3 4 5 6 7 8 9 10 A A C D B B D A B D N The Periodic Table 1 2 3 4 5 6 7 8 9 10 B D A A C B B B C B O Energy Changes 1 2 3 4 5 6 7 8 9 10 B C D B A C B D C A

_______________________________________________________________________________________________________________________________________________________________________________________ Page 3 P Speed of Reaction 1 2 3 4 5 6 7 8 9 10 C D C C D D D B C C Q Ammonia 1 2 3 4 5 6 7 8 9 10 B D D B B A C B D D R The Atmosphere and Environment 1 2 3 4 5 6 7 8 9 10 B A D A D B B A A D 𝛀 Miscellaneous 1 2 3 4 5 A B C B C