Organic Chemistry (Kaplan MCAT)
2025/2026 Exam Questions with 100%
Correct Answers | Latest Update
Chapter 1 - 🧠ANSWER ✔✔CH1 Nomenclature
organic chemistry - 🧠ANSWER ✔✔the study of all chemicals containing
carbon
Arrhenius acid - 🧠ANSWER ✔✔Produces H+ ions when dissolved in water
*acids=selfish, they take (e-) and kick (H+)
Arrhenius base - 🧠ANSWER ✔✔Produces OH- ions when dissolved in
water
*bases=kind, they donate (e-) and shelter (H+)
,nomenclature naming cheatsheet - 🧠ANSWER ✔✔5 ways to look at name:
1. Prefix-longestchain-suffix
2. 2@carbonchain-suffix
3. #-substituent-base-boss
4. least reactive-chain-most reactive
5. ordering of C start from the end with the boss/most reactive group
ex. 2,2-ethyl-4methylhept-ene-ioc acid (most oxidizing at end)
nomenclature based on alkyl-substituent branching: - 🧠ANSWER ✔✔n-
=normal flat chain
t- =3 leaf clover shape
neo- =4 leaf clover shape
iso- =fork split at end
sec- =branch off on nonterminal C
tran- =branches opposite side (ex. geminal diol)
cis= =branches same side (ex. vicinal diol)
,cyclo- =in ring
10 Nomenclature (Name/shape/prefix/suffix/ex) cheatsheet: - 🧠ANSWER
✔✔In order of reactivity/priority...
1. Carboxylic acids (-COOH)=carboxy-/-oic acid/ ex. butanoic acid
2. Anhydride (O=C-O-C=O)=necklace shape/alkanoyloxycarbonyl-/-
anhydride/ ex. butyric anhydride
3. Ester (-COOR)=alkoxycarbonyl-/-oate/ex. ethyl butanoate
4. amide(-NH)= amido-/-amide/ex. butanamide
5. aldehyde (-O=CH)= oxo-/-al/ex. butanal
6. ketone (O=<CC)=carkey/oxo- or keto-/-one/ex. butanone
7. alcohol (-COH)= hydroxy-/-ol/ex. butanol
8. alkene (C=C)=alkenyl-/-ene/ex. butene
9. alkyne (C≡C)=alkynyl-/-yne/ex. butyne
10. alkane (C-C)=alkyl-/-ane/ex. butane
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, *3 carboxylic acid derivatives=ester, amide, anhydrides
alkanes - 🧠ANSWER ✔✔a hydrocarbon containing only single covalent
bonds
Ex. CH4
Name alkanes with 1-12Cs - 🧠ANSWER ✔✔1=methane,
2=ethane,
3=propane,
4=butane,
5=pentane,
6=hexane,
7=heptane,
8=octane,
9=nonane,
10=decane,
11=undecane, (why it starting to sound spanish?)
12dodecane (oh right it's latin)
2025/2026 Exam Questions with 100%
Correct Answers | Latest Update
Chapter 1 - 🧠ANSWER ✔✔CH1 Nomenclature
organic chemistry - 🧠ANSWER ✔✔the study of all chemicals containing
carbon
Arrhenius acid - 🧠ANSWER ✔✔Produces H+ ions when dissolved in water
*acids=selfish, they take (e-) and kick (H+)
Arrhenius base - 🧠ANSWER ✔✔Produces OH- ions when dissolved in
water
*bases=kind, they donate (e-) and shelter (H+)
,nomenclature naming cheatsheet - 🧠ANSWER ✔✔5 ways to look at name:
1. Prefix-longestchain-suffix
2. 2@carbonchain-suffix
3. #-substituent-base-boss
4. least reactive-chain-most reactive
5. ordering of C start from the end with the boss/most reactive group
ex. 2,2-ethyl-4methylhept-ene-ioc acid (most oxidizing at end)
nomenclature based on alkyl-substituent branching: - 🧠ANSWER ✔✔n-
=normal flat chain
t- =3 leaf clover shape
neo- =4 leaf clover shape
iso- =fork split at end
sec- =branch off on nonterminal C
tran- =branches opposite side (ex. geminal diol)
cis= =branches same side (ex. vicinal diol)
,cyclo- =in ring
10 Nomenclature (Name/shape/prefix/suffix/ex) cheatsheet: - 🧠ANSWER
✔✔In order of reactivity/priority...
1. Carboxylic acids (-COOH)=carboxy-/-oic acid/ ex. butanoic acid
2. Anhydride (O=C-O-C=O)=necklace shape/alkanoyloxycarbonyl-/-
anhydride/ ex. butyric anhydride
3. Ester (-COOR)=alkoxycarbonyl-/-oate/ex. ethyl butanoate
4. amide(-NH)= amido-/-amide/ex. butanamide
5. aldehyde (-O=CH)= oxo-/-al/ex. butanal
6. ketone (O=<CC)=carkey/oxo- or keto-/-one/ex. butanone
7. alcohol (-COH)= hydroxy-/-ol/ex. butanol
8. alkene (C=C)=alkenyl-/-ene/ex. butene
9. alkyne (C≡C)=alkynyl-/-yne/ex. butyne
10. alkane (C-C)=alkyl-/-ane/ex. butane
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, *3 carboxylic acid derivatives=ester, amide, anhydrides
alkanes - 🧠ANSWER ✔✔a hydrocarbon containing only single covalent
bonds
Ex. CH4
Name alkanes with 1-12Cs - 🧠ANSWER ✔✔1=methane,
2=ethane,
3=propane,
4=butane,
5=pentane,
6=hexane,
7=heptane,
8=octane,
9=nonane,
10=decane,
11=undecane, (why it starting to sound spanish?)
12dodecane (oh right it's latin)
