CHY 142 TEST 1 QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
whats a constitutional isomer - Answers an isomer that involves diff bonding of atoms
What's a stereoisomer? - Answers Compounds with the same structural formula but a different
arrangement of atoms in space
formal charge equation - Answers Formal charge= valence-Nnonbondinge - Nbonds
what properties decrease boiling point - Answers branching, nonpolar, small/light mass
what increases boiling point - Answers larger the atom, the more electrons, stronger the london
forces, more energy required to break these forces
bondlength trends - Answers decreases as more bond but increases with strength
degrees of unsaturation - Answers C + 1+ N/2 - H/2 - X/2
name the VSEPR geometries with and without lone electrons - Answers sp3 with 0 lone pairs =
tetrahedral
sp3 with 1 lone pairs= trigonal pyramidal
sp3 with 2 lone pairs= bent
sp2 with 0 lone pairs= trig planar
sp2 with 1 lone pair= bent
sp with 0 lone pairs = linear
How to identify aldehydes - Answers double bonded O on end
How to identify ketones - Answers double bonded O in middle or with 2 r groups
Identify amide - Answers Double bonded O with an N with r group beside it
Identify carboxylic Acids - Answers C=O and OH
Special Benzene substituent names - Answers Benzene attached as a sub= phenyl..
carbon - Benzene substituent= benzyl
Naming alcohols - Answers Highest priority: "ol" suffix
Lower priority: "hydroxy" prefix
Multiple: "diol suffix"
Naming ethers - Answers simple: names as "R R' ether", in alphabetical order
Complex: name smaller projection as alkoxy and then parent
Naming amines - Answers R amine | and position on 2nd and 3rd amines are N
Naming Alkenes and Alkynes - Answers * they're basically just indicative of double and triple bonds
* the dble and trple bonds are named like substituents but may be a prefix or a suffix (ex: 2-butene or
but-2-ene)
* if there's multiple, it's generalyl separated from the suffix (ex: 1,3-butadiene)
whats a constitutional isomer - Answers an isomer that involves diff bonding of atoms
What's a stereoisomer? - Answers Compounds with the same structural formula but a different
arrangement of atoms in space
formal charge equation - Answers Formal charge= valence-Nnonbondinge - Nbonds
what properties decrease boiling point - Answers branching, nonpolar, small/light mass
what increases boiling point - Answers larger the atom, the more electrons, stronger the london
forces, more energy required to break these forces
bondlength trends - Answers decreases as more bond but increases with strength
degrees of unsaturation - Answers C + 1+ N/2 - H/2 - X/2
name the VSEPR geometries with and without lone electrons - Answers sp3 with 0 lone pairs =
tetrahedral
sp3 with 1 lone pairs= trigonal pyramidal
sp3 with 2 lone pairs= bent
sp2 with 0 lone pairs= trig planar
sp2 with 1 lone pair= bent
sp with 0 lone pairs = linear
How to identify aldehydes - Answers double bonded O on end
How to identify ketones - Answers double bonded O in middle or with 2 r groups
Identify amide - Answers Double bonded O with an N with r group beside it
Identify carboxylic Acids - Answers C=O and OH
Special Benzene substituent names - Answers Benzene attached as a sub= phenyl..
carbon - Benzene substituent= benzyl
Naming alcohols - Answers Highest priority: "ol" suffix
Lower priority: "hydroxy" prefix
Multiple: "diol suffix"
Naming ethers - Answers simple: names as "R R' ether", in alphabetical order
Complex: name smaller projection as alkoxy and then parent
Naming amines - Answers R amine | and position on 2nd and 3rd amines are N
Naming Alkenes and Alkynes - Answers * they're basically just indicative of double and triple bonds
* the dble and trple bonds are named like substituents but may be a prefix or a suffix (ex: 2-butene or
but-2-ene)
* if there's multiple, it's generalyl separated from the suffix (ex: 1,3-butadiene)
