WAZZAP > Quiz 5 > Flashcards

Quiz 5 Flashcards

(50 cards)

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1
Q
  1. Which of the following waste is classified as as halogenated waste?

A. waste containing toluene

B. waste containing dichloromethane

C. waste containing acetone

D. waste containing ammonia

A

B. waste containing dichloromethane

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2
Q
  1. Which of the following waste is classified as non-halogenated waste?

A. waste containing acetonitrile

B. waste containing chloroform

C. waste containing polychlorinated hydrocarbons

D. waste containing bromine

A

A. waste containing acetonitrile

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3
Q
  1. Which of the following waste is not classified as inorganic waste?

A. waste containing mercury

B. waste containing lead

C. waste containing arsenic

D. waste containing acetonitrile

A

D. waste containing acetonitrile

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4
Q
  1. What is the minimum concentration of cyanide contained in a waste to be classified it under A101 (waste containing cyanide) ?

A. 20 ppm

B. 100 ppm

C. 200 ppm

D. 1000 ppm

A

C. 200 ppm

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5
Q
  1. According to Revised DAO 04-36, the appropriate waste labels shall include ;

A. volume of waste

B. generator ID number

C. container material

D. all of the above

A

D. all of the above

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6
Q
  1. Under Bronsted concept of acids and bases; a base is

A. a proton donor

B. a proton acceptor

C. a hydroxide donor

D. an electron pair donor

A

B. a proton acceptor

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7
Q
  1. Under the Lewis concept of acids and bases; an acid is

A. a proton donor

B. a proton acceptor

C. an electron pair donor

D. an electron pair acceptor

A

D. an electron pair acceptor

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8
Q
  1. Under the Bronsted concept of acids and bases; an acid is

A. a proton donor

B. a proton acceptor

C. an electron pair donor

D. an electron pair acceptor

A

A. a proton donor

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9
Q
  1. Which of the following is NOT an acid - base conjugate pair?

A. HCN and CN -

B. H2O and OH -

C. H2S and OH -

D. NH3 and NH4 +

A

C. H2S and OH -

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10
Q
  1. What effect will addition of excess of HCl have on the pH of a solution of HN3?

A. increase the pH

B. decrease the pH

C. no effect

D. cannot tell from information given

A

B. decrease the pH

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11
Q
  1. What effect will addition of sodium acetate have on the pH of a solution of acetic acid?

A. increase the pH

B. decrease the pH

C. no effect

D. cannot tell from information given

A

A. increase the pH

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12
Q
  1. A solution that cause only a relatively small change in pH upon addition of small amounts of acids and bases is

A. saturated

B. a salt

C. a buffer

D. unsaturasted

A

C. a buffer

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13
Q
  1. Which of the following is a buffer?

A. NaCl / NH4Cl

B. NH3 / NH4Cl

C. NH3 / CH3COOH

D. CH3COOH / NaOH

A

B. NH3 / NH4Cl

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14
Q
  1. A buffer solution may be a mixture of

A. a weak acid and its salt

B. a weak base and its salt

C. an excess of a weak acid with a strong base

D. all of the above

A

D. all of the above

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15
Q
  1. The conjugate base of acetic acid is

A. HCOOH

B. NH3

C. CH3COO -

D. OH –

A

C. CH3COO -

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16
Q
  1. The conjugate acid of ammonia is

A. H3O +

B. NH4 +

C. HCOOH

D. OH –

A

B. NH4 +

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17
Q
  1. The effect produced by an ion, say from a salt, which is the same ion produced by the dissociation of a weak acid or base is called

A. colloidal effect

B. precipitation effect

C. common ion effect

D. ligand effect

A

C. common ion effect

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18
Q
  1. The principle which states that if stress is applied to a system at equilibrium, the equilibrium is shifted in the direction that tends to reduce the stress.

A. Hesienberg uncertainty principle

B. Le Chatelier’s principle

C. Hund’s rule

D. Debye-HUckel principle

A

B. Le Chatelier’s principle

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19
Q
  1. Water cannot function as which one of the following?

A. a bronsted acid

B. a bronsted base

C. a lewis acid

D. a lewis base

A

C. a lewis acid

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20
Q
  1. HCOOK is a / an

A. acid

B. base

C. salt

D. oxide

A

C. salt

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21
Q
  1. It is a strong intermolecular force existing in molecules which have hydrogens bonded to O, N or F.

A. van der Waal’s force

B. covalent bond

C. hydrogen bond

D. ionic bond

Study These Flashcards
A

C. hydrogen bond

22
Q
  1. An atomic bond resulting from the formation of a molecular orbital by the head-on collision of atomic orbitals.

A. sigma bond

B. ionic bond

C. pi bond

D. covalent bond

Study These Flashcards
A

A. sigma bond

23
Q
  1. An instrument for determining the effect of polarized light as it passes through the material being tested.

A. spectrophotometer

B. polariscope

C. gyroscope

D. telescope

Study These Flashcards
A

B. polariscope

24
Q
  1. How many pi bonds are there in a double bond?

A. 0

B. 1

C. 2

D. 3

25
25. The geometry of the benzene molecule is A. tetrahedral B. linear C. bent D. planar
D. planar
26
26. Carbon forms A. 2 ionic bonds B. 2 covalent bonds C. 4 ionic bonds D. 4 covalent bonds
D. 4 covalent bonds
27
27. A polynuclear aromatic hydrocarbon is made by fusing together at least A. two benzene rings B. two cycloalkanes C. three alkyl groups D. two alkynes
A. two benzene rings
28
28. Which of the following is a saturated hydrocarbon? A. alkane B. alkene C. alkyne D. alkadiene
A. alkane
29
29. In chemical reactions involving alkenes, halogen atoms can replace hydrogen atoms. These reactions are called A. combustion B. dehydrogenation C. substitution D. addition
B. dehydrogenation
30
30. It is an addition reaction initiated by an electron-deficient species. A. electrophilic B. nucleophilic C. carbionic D. reversible
A. electrophilic
31
31. The alcohol present in alcoholic beverages is A. methyl alcohol B. ethyl alcohol C. denatured alcohol D. wood alcohol
B. ethyl alcohol
32
32. When an alkane burns completely in air, it forms A. carbon monoxide and water B. carbon dioxide and water C. carbon and pentane D. carbon dioxide and carbon monoxide
B. carbon dioxide and water
33
33. Petroleum is believed to have formed mostly from the anaerobic decomposition of buried A. dinosaurs B. pine trees C. fish D. plankton and algae
D. plankton and algae
34
34. Which of the following is needed to make a silicone rubber? A. trihydroxymethyl silane B. hydroxytrimethyl silane C. dihydroxydimethyl silane D. tetramethyl silane
A. trihydroxymethyl silane
35
35. It involves the removal of hydrogen from carbon-oxygen single bond or insertion of oxygen in a molecule. A. reduction B. oxygenation C. oxidation D. dehydrogenation
C. oxidation
36
36. Esters are formed from condensation reactions between A. alcohols and aldehydes B. ethers and acids C. aldehydes and acids D. alcohols and acids
D. alcohols and acids
37
37. Of the following, which are the most reactive? A. alkanes B. alkenes C. cycloalkanes D. alkynes
D. alkynes
38
38. A cycloalkane consist of A. a straight chain of carbon atoms with two or three hydrogen atom attached to each carbon B. a ring of carbon atoms with two hydrogen atoms connected to every carbon atom C. a ring of carbon atoms with three hydrogen atoms connected to every carbon atom D. a ring of alkane molecules joined together
B. a ring of carbon atoms with two hydrogen atoms connected to every carbon atom
39
39. An isomer of ethanol is A. Methanol B. ethylene glycol C.dimethyl ether D. acetone
C.dimethyl ether
40
40. Pentane and isopentane are what type of isomers? A. aldehydes B. chiral C. structural D. enantiomers
C. structural
41
41. The most characteristic reactions of alkenes are A. condensation reactions B. substitution reactions C. addition reactions D. none of these, alkenes are inert
C. addition reactions
42
42. The rule which states that, “ In the addition of HX to alkenes, the halogen attaches to the doubly bonded carbon with more alkyl substituent.” A. Saitsev’s rule B. Hoffman rule C. Markovnikoff’s rule D. peroxide effect
C. Markovnikoff’s rule
43
43. The hybridization of carbon 3 in 2-hexene is A. sp B. sp² C. sp³ D. sp4
B. sp²
44
44. Which of the following test will distinguish 1-propanol from 2-propanol? A. Fehling’s test B. Tollen’s test C. Benedict’s test D. Lucas test
D. Lucas test
45
45. CH3CH2CH2OH is the formula for A. propyl alcohol B. amyl alcohol C. butyl alcohol D. methyl alcohol
A. propyl alcohol
46
46. When an alcohol is dehydrated it forms A. an aldehyde B. an acid C. an alkene D. a ketone
C. an alkene
47
47. If “thio” appears on the name of a compound, you know that the compound contains a functional group based on A. oxygen B. hydrogen C. a halogen D. sulfur
D. sulfur
48
48. Which among the following is a ketone? A. CH3COCH3 B. (CH3)2CHOH C. CH3OCH2CH3 D. CH3CHO
A. CH3COCH3
49
49. Which of the following is propanone? A. CH3COCH3 B. CH3CO2H C. CH3CHO D. HCHO
A. CH3COCH3
50
50. Secondary alcohol when undergoes oxidation forms A. aldehyde B. acid C. ketone D. ester
C. ketone
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