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WAZZAP > Quiz 23 > Flashcards

Quiz 23 Flashcards

1
Q
  1. Biological catalyst which expedite reactions by lowering the amount of activation required.

enzymes

positive catalyst

inhibitor

depressants

A

enzymes

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2
Q
  1. In the presence of certain chemical reagents, excessive heat, radiation, unfavorable pH, etc., the protein structure may become disorganized. This is called

rearrangement

denaturation

putrefaction

isomerism

A

denaturation

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3
Q
  1. Ethylene readily undergoes the following type of reaction

addition

elimination

substitution

rearrangement

A

addition

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4
Q
  1. A functional group on the principal polymer chain.

radical group

pendant group

aromatic group

chain group

A

radical group

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5
Q
  1. Ring compounds consisting of carbon and other atoms.

aromatic

heterocyclic

terpolymer

copolymer

A

aromatic

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6
Q
  1. Which of the following compound gives a foul odor?

hydrogen sulfide

methane

carbon dioxide

nitrogen

A

hydrogen sulfide

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7
Q
  1. Aluminum chloride is found to exist as a

monomer

dimer

trimer

tetramer

A

dimer

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8
Q
  1. According to Bronsted - Lowry theory, an acid is a substance that can

accept an electron pair

donate an electron pair

accept a proton

donate a proton

A

donate a proton

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9
Q
  1. A gamma-ray source for radiation therapy treatments.

uranium-235

cobalt-60

uranium-236

plutonium-239

A

cobalt-60

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10
Q
  1. The Lucas test is used to determine the types of

alcohols

amines

acids

amino acids

A

alcohols

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11
Q
  1. A carboxylic acid which contributes to the strong odor of rancid butter and other fats.

caproic acid

acetic acid

lactic acid

butyric acid

A

butyric acid

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12
Q
  1. Which one of the following is not a metal?

Al

O

Zn

Hg

A

O

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13
Q
  1. Which one of the following is a metalloid?

Al

Ge

Be

Zn

A

Ge

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14
Q
  1. Which one of the following is improperly labeled?

K-alkali metal

Ca-alkaline earth metal

Xe-chalcogen

Br-halogen

A

Xe-chalcogen

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15
Q
  1. Which one of the following is improperly labeled?

Na-alkali metal

Kr-noble gas

Ba-alkaline earth metal

I-chalcogen

A

I-chalcogen

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16
Q
  1. Which of the following statements is incorrect?

saltpeter,KNO3, is really potassium nitrate

soda ash, Na2 CO3, is really sodium carbonite

lime, CaO, is really calcium oxide

muriatic acid, HCl, is really hydrochloric acid

A

soda ash, Na2 CO3, is really sodium carbonite

17
Q
  1. Which one of the following is named correctly?

calcium sulfide, Ca(HS)2

bromic acid , HBrO2

aluminum nitride, AlN

iron(III) oxide, FeO

A

aluminum nitride, AlN

18
Q
  1. Which is incorrectly named, using the rules for binary molecular compounds?

SbCl3-antimony trichloride

C2O5-dicarbon pentoxide

H3As-hydrogen arsenide

NO2 nitrogen dioxide

A

H3As-hydrogen arsenide

19
Q
  1. Balance the following equation and indicate whether it is a combustion, combination, or decomposition reaction : Li + N2  Li3N

6Li + N2 -> 2Li3N, combination reaction

Li + N2 -> 3Li3N, combination

6Li + N2 -> 2Li3N, decomposition reaction

Li + N2 -> 3Li3N , combustion

A

6Li + N2 -> 2Li3N, combination reaction

20
Q
  1. ______ involves electron transfer from one atom to another?

covalent bonding

ionic bonding

hydrogen bonding

metallic bonding

A

ionic bonding

21
Q
  1. Which of the following is responsible for the abnormally high boiling point of water?

covalent bonding

hydrogen bonding

high polarity

large dielectric constant

A

hydrogen bonding

22
Q
  1. sp² hybridization will be found for carbon in

CH4

C2H4

C2H2

CH3OH

A

C2H4

23
Q
  1. . Saponification is a reaction in which a tricylglycerol reacts with a strong base to form

glycerol and three soap molecules

glycerol and three water molecules

three fatty acid molecules and water

oleic acid and water

A

glycerol and three soap molecules

24
Q
  1. The alkane containing a total of 20 hydrogen atoms must be an isomer of

cyclononane

decane

eicosane

nonane

A

nonane

25
Q
A

WAZZAP (31 decks)

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