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WAZZAP > Quiz 8 > Flashcards

Quiz 8 Flashcards

1
Q
  1. Which of the following is the strongest type of bond?

hydrogen bond

ionic bond

covalent bond

metallic bond

A

ionic bond

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2
Q
  1. The type of bonding in hydrogen chloride is

Ionic

polar covalent

Non-polar covalent

Co-ordinate covalent

A

polar covalent

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3
Q
  1. Elements present in group I are called

alkali metals

reactive non metals

amphoteric

alkaline earth metals

A

alkali metals

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4
Q
  1. _____ is the Greek word for “ salt-forming”.

actinides

halogen

lanthanide

transition

A

halogen

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5
Q
  1. What happens to the metallic property of elements as you move from left to right in a periodic table of elements?

decreases

increases

remains the same

varies

A

decreases

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5
Q
  1. The atomic number of an element is based on the

atomic weight

number of neutrons

number of protons

density of vapor

A

number of protons

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6
Q
  1. Which of the following has no definite structure?

crystalline

amphoteric

amorphous

allotropic

A

amorphous

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7
Q
  1. A substance that contains hydrogen and yields hydrogen ions in aqueous solution.

Acid

base

neutral

buffer

A

Acid

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8
Q
  1. A solution of a weak acid and its salt which resist appreciable changes in pH value is called

normal solution

colloidal dispersion

neutral solution

buffer solution

A

buffer solution

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9
Q
  1. Oxidation involves

loss of protons

gain of electrons

increase in valency

decrease in valency

A

increase in valency

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10
Q
  1. These are very large molecules formed by linking together many smaller molecules.

monomers

oligomers

polymers

isomers

A

polymers

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11
Q
  1. A substance that increases the rate of reaction but not being consumed in the reaction.

base

acid

catalyst

substrate

A

catalyst

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12
Q
  1. Aspirin is

salicylic acid

acetylsalicylic acid

methyl salicylate

phenyl salicylate

A

acetylsalicylic acid

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13
Q
  1. Lanolin is

a hydrocarbon oil

a hydrocarbon wax

a plant wax

fat from sheep’s wool

A

fat from sheep’s wool

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14
Q
  1. Hair is

protein

carbohydrate

fat

cellulose

A

protein

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15
Q
  1. Most conditioners of hair are

detergents

resins

proteins

herbal essences

A

proteins

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15
Q
  1. In acidic solutions, soap are converted into

bases

phenols

esters

carboxylic acids

A

carboxylic acids

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16
Q
  1. The salts of long-chain carboxylic acids are called

soaps

synthetic detergents

fabric softeners

bleaches

A

soaps

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17
Q
  1. Most bleaches contain the element

phosphorus

nitrogen

potassium

chlorine

A

chlorine

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18
Q
  1. Ions of which element do not cause hard water?

calcium

iron

magnesium

potassium

A

potassium

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19
Q
  1. The most abundant element in our bodies, by mass, is

oxygen

nitrogen

carbon

sodium

20
Q
  1. Because water molecules are associated through hydrogen bonding, water has a high

temperature

density

boiling point

solubility

A

boiling point

20
Q
  1. The element present in complete fertilizers are

C, H, O

C, H, N

Ca, Mg, S

N, P, K

21
Q
  1. The only common liquid on the Earth is

mercury

water

petroleum

oxygen

22
Q
  1. Because oil slick do not dissolve in water, one might expect oil to be composed of ____ molecules.

nonpolar

polar

subpolar

arctic

23
Q
  1. Which of the following is not true?

solubility of gases in water increases with increasing temperature

solubility of gases in water increases with increasing pressure

solubility of gases in water is important for fish populations

solubility of both oxygen and nitrogen gas increases with pressure

A

solubility of gases in water increases with increasing temperature

24
Q
  1. Despite repeated attempts, no one has ever been able to separate chlorine into simpler substances. Therefore we accept chlorine as a(n)

compound

element

mixture

polar molecule

25
Q
  1. A scientific statement, often mathematical in form, that summarizes experimental data is called a

law

theory

hypothesis

proposition

26
Q
  1. All samples of a pure substance

contain no chemicals

have the same composition

have a variable composition

are heterogeneous

A

have the same composition

27
Q
  1. Isotopes have the same

mass number

atomic number

atomic mass

half-life

A

atomic number

27
Q
  1. Elements are placed in groups in the periodic table on the basis of

alphabetical listing

similar chemical properties

number of neutrons in the nucleus

order of discovery

A

similar chemical properties

28
Q
  1. Which hydrogen isotope contains one neutron?

protium

deuterium

tritium

none of these

29
Q
  1. Which substance would most likely have ionic bonds?

HCl

Na2O

Cl2

N2O

30
Q
  1. Which substance has polar covalent bonds?

CaF2

F2

HF

H2

31
Q
  1. The water molecule is

bent

linear

pyramidal

pyramidal

32
Q
  1. In nearly all molecules, carbon forms ____ bonds.

2

3

4

5

33
Q
  1. A chemical bond formed by the equal sharing of electrons is called

ionic

nonpolar covalent

polar covalent

coordinate

A

nonpolar covalent

34
Q
  1. During fermentation, the final products formed are CO2, and either lactic acid or

water

glucose

alcohol

riboflavin coenzyme

35
Q
  1. The acid found in stomach fluid is

NH3

CH3COOH

HCl

H2SO4

36
Q
  1. All “liquid chlorine” bleach solutions contain 5.25%

NH3

NaOH

NaOCl

HCl

37
Q
  1. The atomic particle located outside of the nucleus is the

proton

positron

neutron

electron

38
Q
  1. In a covalent bond, electrons are

shared

split

lost

added

39
Q
  1. A substance composed of a large molecule that is made of many smaller similar repeating units is called

glycerol

polymer

fatty acid

monosaccharide

40
Q
  1. An enzyme is a

deoxyribose

lipid

protein

ribose

41
Q
  1. A hormone that enables the cells to utilize glucose is

gastrin

insulin

testosterone

cortisone

41
Q
  1. The storehouse of energy in the cell is

ATP

nucleus

cell membrane

DNA

42
Q
  1. Tobacco smoke contains

caffeine

nicotine

niacine

morphine

43
Q
  1. Rod-shaped bacteria are called

bacilli

spirilla

cocci

44
Q
  1. Bacteria may survive unfavorable conditions by

splitting in half

forming flagella

forming spores

forming bacteriophage

A

forming spores

WAZZAP (31 decks)

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