SCH4U FINAL REVIEW SCRIPT 2026 TESTED
ANSWERS GRADED A+
● alkanes. Answer: hydrocarbon that has only SINGLE bonds
formula: CnH2n+2
● cycloalkane. Answer: single bonded hydrocarbon in the shape of a
ring
● alkenes. Answer: compound that has at least one DOUBLE bond
formula: CnH2n
● alkynes. Answer: compound that has at least one TRIPLE bond
formula: CnH2n-2
● condensed structural diagram. Answer: shorthand way to show an
organic molecule's structure in a single line of text, listing atoms in order
and using parentheses for branches or repeated groups
● complete structural diagram. Answer: similar to Lewis structure.
explicitly displays all atoms, covalent bonds (as lines or pairs of dots),
and lone pairs within a molecule to show precise connectivity
, ● linear structure diagram. Answer: each line is an intersect of carbons
● name/draw an alcohol. Answer: 1. root (longest chain with -OH group)
2. suffix (add -ol to end of parent alkane name)
3. prefix (name and # alkyl side groups)
ex. methanol
● name/draw alkyl halides (haloalkanes). Answer: 1. root (longest chain
with halogen)
2. suffix (alkane name)
3. prefix (name and # of alkyl side groups and halogens)
ex. 1,3-dichloro-3-fluoro-2-methylbutane
● name/draw ethers (oxygen sandy). Answer: 1. root (longest chain)
2. suffix (ends according to main chain)
3. prefix (name and # of alkyl side groups)
ex. dimethyl ether
● name/draw amines. Answer: 1. root (longest chain bonded to nitrogen)
2. suffix (-amine and indicate position of N)
3. prefix (indicate alkyl groups on N)
ANSWERS GRADED A+
● alkanes. Answer: hydrocarbon that has only SINGLE bonds
formula: CnH2n+2
● cycloalkane. Answer: single bonded hydrocarbon in the shape of a
ring
● alkenes. Answer: compound that has at least one DOUBLE bond
formula: CnH2n
● alkynes. Answer: compound that has at least one TRIPLE bond
formula: CnH2n-2
● condensed structural diagram. Answer: shorthand way to show an
organic molecule's structure in a single line of text, listing atoms in order
and using parentheses for branches or repeated groups
● complete structural diagram. Answer: similar to Lewis structure.
explicitly displays all atoms, covalent bonds (as lines or pairs of dots),
and lone pairs within a molecule to show precise connectivity
, ● linear structure diagram. Answer: each line is an intersect of carbons
● name/draw an alcohol. Answer: 1. root (longest chain with -OH group)
2. suffix (add -ol to end of parent alkane name)
3. prefix (name and # alkyl side groups)
ex. methanol
● name/draw alkyl halides (haloalkanes). Answer: 1. root (longest chain
with halogen)
2. suffix (alkane name)
3. prefix (name and # of alkyl side groups and halogens)
ex. 1,3-dichloro-3-fluoro-2-methylbutane
● name/draw ethers (oxygen sandy). Answer: 1. root (longest chain)
2. suffix (ends according to main chain)
3. prefix (name and # of alkyl side groups)
ex. dimethyl ether
● name/draw amines. Answer: 1. root (longest chain bonded to nitrogen)
2. suffix (-amine and indicate position of N)
3. prefix (indicate alkyl groups on N)
