Interactive Quiz 2

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Question 1

What is the correct name of the compound shown below?
A) 3-ethyl-4,5-dimethylnonane
B) 5,6-dimethyl-8-ethyldecane
C) 3-ethyl-5,6-dimethyldecane
D) 1,1-diethyl-3,4-dimethyloctane
E) 1-isopropyl-2,4-dimethylheptane

Question 2

Which of the following are constitutional isomers?
A) 1 and 2
B) 1 and 3
C) 2, 3 and 5
D) 1,2 and 4
E) 1, 3 and 5

Question 3

Which of the following is a constitutional isomer of CH3CH2COOH that exhibits optical isomerism?
A) CH3CH(OH)COCH3
B) CH3COOCH3
C) CH3COCH2OH
D) HOCH=CHOCH3
E) CH3CH(OH)CHO

Question 4

What is the IUPAC name of the following compound?
A) 1,3-cycloheptadiene
B) 3,5-cyclohexadiene
C) 1,3-dicyclohexene
D) 1,3-cyclohexadiene
E) 3,5-cyclopentadiene

Question 5

Which of the following is likely to be an aromatic compound?
A) C6H5Cl
B) C6H12
C) C2H4Cl2
D) C2H2
E) C4H8

Question 6

Which of the formulas in the answers represents the alcohol parent of the ester below?
A) CH3 - CH2 - CH2 - OH
B) CH3 - CH2 - OH
C) CH3 - COOH
D) CH3 - CH2 - COOH
E) none of the above

Question 7

Which type of organic compound contains a hydroxyl group?
A) ethers
B) carboxylic acids
C) esters
D) ketones
E) aldehydes

Question 8

Which type of organic compound does not contain a carbonyl group?
A) carboxylic acids
B) ethers
C) ketones
D) aldehydes
E) esters

Question 9

Organic compounds with the general formula HCOOR (where R is a hydrocarbon group) are called:
A) ketones
B) acids
C) ethers
D) esters
E) aldehydes

Question 10

The segment -CH2CH=CHCH2CH2CH=CHCH2- represents the polymer named
A) polypropylene
B) polybutadiene
C) polystyrene
D) polybutylene
E) polyisoprene

Question 11

What class of polymers are formed along with small molecules (e.g., water) when monomer units link?
A) condensation
B) addition
C) elimination
D) substitution
E) copolymers

Question 12

The C-C and C=C bond energies are 346 and 602 kJ/mol. The enthalpy of polymerization of an alkene should be about:
A) 90 kJ/mol
B) -90 kJ/mol
C) -692 kJ/mol
D) -256 kJ/mol
E) none of the above.

Question 13

What interactions are primarily responsible for stabilizing the helical structure of certain proteins?
A) hydrogen-bonding
B) dispersion forces
C) covalent bonds
D) ionic interactions
E) steric interactions

Question 14

What two atoms are linked in a peptide bond?
A) C-O
B) N-O
C) S-C
D) C-N
E) C-C

Question 15

Which of the following arrangements is correct for the interrelation of the protein amino acid sequence, the RNA base sequence, and the DNA base sequence?
A) The DNA base sequence determines the RNA base sequence which, in turn, determines the protein amino acid sequence.
B) The RNA base sequence determines the protein amino acid sequence which, in turn, determines the DNA base sequence.
C) The DNA base sequence determines the protein amino acid sequence which, in turn determines the RNA base sequence.
D) The protein amino acid sequence determines the RNA base sequence which, in turn, determines the DNA base sequence.
E) The RNA base sequence determines the DNA base sequence which, in turn, determines the protein amino acid sequence.




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