CHEM 1020 FINAL EXAM 2023/2024 REVIEW QUESTIONS AND
CORRECT ANSWERS .
1.) what is a major difference between organic and inorganic compounds?
ANSWER: organic contain carbon
2.) what is the reason why there are so many organic compounds?
ANSWER: carbon atoms can form stable covalent bonds with other carbon atoms
3.) the vast number of organic compounds is due to the unique chemistry of carbon. this chemistry involves
ANSWER: formation of long chains& isomerism
4.) Which applies to the manner in which carbon bonds in alkanes?
ANSWER: the bonds are formed with carbon using an sp3 configuration
5.) functional groups are
ANSWER: to organic chem as polyatomic ions are to inorganic chem, are chemically bound to each other in order to develop larger molecules
6.) the alkanes represent one family of organic compounds
ANSWER: that is composed of carbon and hydrogen
7.) formulas of organic compounds
ANSWER: CH3CH2COOH, CH3CH2OH, 1 / 3
CH3CH3CH3
8.) which is an alcohol
ANSWER: CH3CH2OH
9.) what is meant by the term "saturated" when describing hydrocarbons
ANSWER: they are saturated with hydrogen and only have single bonds between carbons
10.) correct statements on the naming of organic compounds
ANSWER: many compounds have been known long enough to have common names, the naming system of organic compounds is set by IUPAC rules, & the naming system requires that the longest carbon chain must always be found
11.) cycloalkanes are
ANSWER: NOT: compounds that have a flat molecular structure, saturated hydrocarbons, or compounds that cannot have hydrogens removed and replaced by chlorine
12.) which of the following term applies to the alkanes
ANSWER: hydrophobic
13.) what is a characteristic shared by the alkanes
ANSWER: flammable 2 / 3
14.) which of the following is a use for alkanes?
ANSWER: a. fuel
- lubricant
- solvent
D. MORE THAN ONE IS CORRECT
15.) which of the following represent a saturated hyrdocarbon
ANSWER: C2H6
16.) All of the members of the alkane series of hydrocarbons have the general formula
ANSWER: CnH2n+2
17.) which of the following compounds can exhibit structural isomerism?
ANSWER: butane
18.) how many structural isomers are possible for compounds with a molecular formula C4H10
ANSWER: 2
19.) which is a structural isomer of 2-methylbutane
ANSWER: pentane
20.) how many structural isomers of C7H16 have 5 carbon atoms in the longest carbon chain
- / 3