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Question
Elimination of a small molecule such as water is involved in formation of which type of polymer?A) condensation polymer
B) addition polymer
C) free-radical polymer
D) homopolymer
E) copolymer
Answer
This answer is hidden. It contains 1 characters.
Related questions
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The overall shape of a protein is maintained by
A) hydrogen bonding.
B) ionic bonds.
C) dipole"dipole bonding.
D) covalent bonds.
E) all of these
Q:
Which of the following statements is correct?
A) Fibrous proteins tend to form long, water-soluble fibers, while globular proteins tend to form compact, water-soluble shapes.
B) Fibrous proteins tend to form long, water-insoluble fibers, while globular proteins tend to form compact, water-soluble shapes.
C) Fibrous proteins tend to form long, water-insoluble fibers, while globular proteins tend to form compact, water-insoluble shapes.
D) Both fibrous proteins and globular proteins tend to form water-soluble structures of about the same shape.
E) Fibrous proteins tend to form long, water-soluble fibers, while globular proteins tend to form compact, water-insoluble shapes.
Q:
Which of the following structures is the best representation for the amino acid cysteine under physiological conditions?A) B) C) D) E)
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The side chain on the amino acid phenylalanineis classified asA) polar.B) asymmetric.C) hydrophilic.D) nonpolar.E) chiral.
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Which of the following is not an addition polymer?A) poly(vinyl chloride)B) polyethyleneC) polystyreneD) polypropyleneE) polyester
Q:
Which substance is a weak Brnsted"Lowry acid in aqueous solution?
A) CH3OCH3
B) CH3COOCH3
C) CH3OH
D) CH3NH2
E) CH3COOH
Q:
Name the following: A) ethanol
B) propanol
C) butanol
D) 2-butanol
E) 2-propanol
Q:
What is the hybridization of the carbon in the aldehyde functional group?
A) sp2
B) sp3
C) sp
D) sp3d
E) sp3d2
Q:
How many structural isomers possessing the alcohol functional group have the molecular formula C4 H10 O?
A) 3
B) 4
C) 1
D) 5
E) 2
Q:
What is the IUPAC name for the molecule given below? A) trans-3-hexene
B) cis-3-hexene
C) cis-3-pentene
D) cis-3-pentyne
E) trans-3-hexyne
Q:
Which of the following statements concerning aromatic hydrocarbons is/are correct?
1) Benzene requires a catalyst to undergo an addition reaction with Br2.
2) The pi electrons of benzene are delocalized over the entire carbon ring.
3) Aromaticity leads to decreased stability relative to alkenes.
A) 1 only
B) 2 only
C) 3 only
D) 1 and 2
E) 1, 2, and 3
Q:
What is the expected major product from the reaction of 2-methyl-2-pentene with HCl?A) B) C) D) E)
Q:
Which of the following is a geometric isomer of the structure given below?A) B) C) D) E)
Q:
Which of the following best describes the bonding in ethylene, CH2=CH2?
A) The pi electrons are localized above and below a plane defined by the carbon and hydrogen atoms.
B) The pi electrons are localized between the two carbons.
C) Each carbon atom is sp2hybridized.
D) A and C.
E) B and C.
Q:
Which of the following is a possible product of the chlorination of butane in the presence of light?
A) C4H9Cl2
B) C4H6Cl2
C) C4H10Cl2
D) C4H9Cl
E) C4H8Cl
Q:
What is the molecular formula of a cyclic alkane with 6 carbon atoms?
A) C6 H14
B) C6 H10
C) C6 H16
D) C6 H12
E) C6 H6
Q:
Four of the following compounds are structural isomers. Which one is not?A) B) C) D) E)
Q:
It is possible to write at least two different structural formulas for each of the following molecular formulas except
A) C2HCl3.
B) C3H7Cl.
C) C3H6.
D) C4H10.
E) C2H2Cl2.
Q:
Which of the following statements is true concerning the two compounds 2,3-dimethylpentane and 2,4-dimethylpentane?
A) Because the two compounds are structural isomers, they should have the same molecular formula.
B) Because the two compounds are structural isomers, they should have identical chemical properties.
C) Because the two compounds are structural isomers, they should have identical physical properties.
D) Because the two compounds are enantiomers, they should rotate polarized light in opposite directions.
E) Because the two compounds are geometric isomers, one should be cisand the other should be trans.
Q:
Which of the following is an example of a condensed formula of an alkane?A) C3H8B) C) D) E) CH3CH2CH2CH3
Q:
Fe has __________ that is(are) unpaired in its d orbitals.
A) 3 electrons
B) 4 electrons
C) 1 electron
D) 2 electrons
E) 5 electrons
Q:
Transition metals can be distinguished from main-group metals by the fact that
A) main-group metals have only +1 or +2 oxidation states.
B) transition metals have higher relative atomic masses than main-group metals.
C) transition metals have a greater tendency to form colored compounds than main-group metals.
D) main-group metals have higher relative atomic masses than transition metals.
E) only the main-group metals can form complex ions.
Q:
Which of the following is not a transition-metal?A) cobaltB) rutheniumC) rhodiumD) vanadiumE) aluminum
Q:
Which of the following statements concerning crystal field theory is incorrect?A) In an isolated metal ion the d-orbitals have identical energies.B) In low spin octahedral complexes the electrons are concentrated in the dxy, dxz, and dyzorbitals.C) High spin complexes have the minimum of unpaired electrons.D) Strong bonding ligands favor a larger crystal field splitting () than weak bonding ligands.E) Low spin complexes are favored when the electron pairing energy (P) is less than the crystal field splitting ().
Q:
Which of the following salts would not be expected to be colored in aqueous solution?A) CoCl2 B) FeCl2C) CuCl2D) CuClE) CrCl3
Q:
Which of the following salts would not be expected to be colored in aqueous solution?A) NiCl2B) CuCl2C) CrCl2D) TiCl3E) CdCl2
Q:
Which of the metal ions in the following complex ions has a d5electron configuration?A) V(H2O)62+B) RhCl64-C) Co(CN)4-D) Fe(CN)63-E) Mo(NH3)63+
Q:
Which of the following high-spin complexes has the most unpaired electrons?
A) [Ti(H2O)6]2+
B) [V(H2O)6]3+
C) [Fe(H2O)6]3+
D) [Cr(H2O)6]3+
E) [Sc(H2O)]63+
Q:
Which of the following compounds can exhibit optical activity?
A) [Co(NH3)4Cl2]Cl
B) [Co(NH2CH2CH2NH2)3]Cl3
C) Na2[CoCl4]
D) [Co(NH3)6]Cl3
E) Cr(CO)6
Q:
How many optical isomers do the cisand transisomers of [Co(en)2Br2]+have?
A) cis, 1 and trans, 1
B) cis, 2 and trans, 0
C) cis, 0 and trans, 0
D) cis, 0 and trans, 2
E) cis, 2 and trans, 2