Quiz 5 Flashcards

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

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

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

A

B. polariscope

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

A. 0

B. 1

C. 2

D. 3

A

A. 0

25
Q
  1. The geometry of the benzene molecule is

A. tetrahedral

B. linear

C. bent

D. planar

A

D. planar

26
Q
  1. Carbon forms

A. 2 ionic bonds

B. 2 covalent bonds

C. 4 ionic bonds

D. 4 covalent bonds

A

D. 4 covalent bonds

27
Q
  1. 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

A. two benzene rings

28
Q
  1. Which of the following is a saturated hydrocarbon?

A. alkane

B. alkene

C. alkyne

D. alkadiene

A

A. alkane

29
Q
  1. In chemical reactions involving alkenes, halogen atoms can replace hydrogen atoms. These reactions are called

A. combustion

B. dehydrogenation

C. substitution

D. addition

A

B. dehydrogenation

30
Q
  1. It is an addition reaction initiated by an electron-deficient species.

A. electrophilic

B. nucleophilic

C. carbionic

D. reversible

A

A. electrophilic

31
Q
  1. The alcohol present in alcoholic beverages is

A. methyl alcohol

B. ethyl alcohol

C. denatured alcohol

D. wood alcohol

A

B. ethyl alcohol

32
Q
  1. 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

A

B. carbon dioxide and water

33
Q
  1. Petroleum is believed to have formed mostly from the anaerobic decomposition of buried

A. dinosaurs

B. pine trees

C. fish

D. plankton and algae

A

D. plankton and algae

34
Q
  1. Which of the following is needed to make a silicone rubber?

A. trihydroxymethyl silane

B. hydroxytrimethyl silane

C. dihydroxydimethyl silane

D. tetramethyl silane

A

A. trihydroxymethyl silane

35
Q
  1. 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

A

C. oxidation

36
Q
  1. Esters are formed from condensation reactions between

A. alcohols and aldehydes

B. ethers and acids

C. aldehydes and acids

D. alcohols and acids

A

D. alcohols and acids

37
Q
  1. Of the following, which are the most reactive?

A. alkanes

B. alkenes

C. cycloalkanes

D. alkynes

A

D. alkynes

38
Q
  1. 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

A

B. a ring of carbon atoms with two hydrogen atoms connected to every carbon atom

39
Q
  1. An isomer of ethanol is

A. Methanol

B. ethylene glycol

C.dimethyl ether

D. acetone

A

C.dimethyl ether

40
Q
  1. Pentane and isopentane are what type of isomers?

A. aldehydes

B. chiral

C. structural

D. enantiomers

A

C. structural

41
Q
  1. The most characteristic reactions of alkenes are

A. condensation reactions

B. substitution reactions

C. addition reactions

D. none of these, alkenes are inert

A

C. addition reactions

42
Q
  1. 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

A

C. Markovnikoff’s rule

43
Q
  1. The hybridization of carbon 3 in 2-hexene is

A. sp

B. sp²

C. sp³

D. sp4

A

B. sp²

44
Q
  1. 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

A

D. Lucas test

45
Q
  1. CH3CH2CH2OH is the formula for

A. propyl alcohol

B. amyl alcohol

C. butyl alcohol

D. methyl alcohol

A

A. propyl alcohol

46
Q
  1. When an alcohol is dehydrated it forms

A. an aldehyde

B. an acid

C. an alkene

D. a ketone

A

C. an alkene

47
Q
  1. 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

A

D. sulfur

48
Q
  1. Which among the following is a ketone?

A. CH3COCH3

B. (CH3)2CHOH

C. CH3OCH2CH3

D. CH3CHO

A

A. CH3COCH3

49
Q
  1. Which of the following is propanone?

A. CH3COCH3

B. CH3CO2H

C. CH3CHO

D. HCHO

A

A. CH3COCH3

50
Q
  1. Secondary alcohol when undergoes oxidation forms

A. aldehyde

B. acid

C. ketone

D. ester

A

C. ketone