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WAZZAP > Quiz 11 > Flashcards

Quiz 11 Flashcards

1
Q
  1. A measure of the gravitational force of attraction exerted on a body is the

density

mass

weight

specific gravity

A

weight

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2
Q
  1. Cathode rays are composed of

positrons

protons

electrons

neutrons

A

electrons

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3
Q
  1. The kind of bond formed between atoms of the same electronegativity will be

covalent

polar covalent

non-polar covalent

ionic

A

non-polar covalent

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4
Q
  1. The formula for aluminum hydroxide is

AlOH

Al(OH)3

Al2(OH)3

Al3OH

A

Al(OH)3

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5
Q
  1. When calcium react with sulfur the compound formed is

Ca2S2

CaS2

CaS

Ca3S2

A

CaS

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6
Q
  1. Which of the element forms an ion with the same charge as the ammonium ion?

chlorine

calcium

oxygen

potassium

A

potassium

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7
Q
  1. The formula of dinitrogen tetroxide is

N2O5

N2O3

N2O

N2O4

A

N2O4

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8
Q
  1. From among the molecular formula given, which molecule has a triple bond?

O2

Cl2

C2H2

CO2

A

C2H2

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9
Q
  1. A substance that is being dissolved in a solution is called the

electrolyte

solvent

solute

colloid

A

solute

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10
Q
  1. Which of the following is not a factor that affect solubility?

properties of solute

temperature

pressure

rate of stirring

A

rate of stirring

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11
Q
  1. Which of the following is a qualitative way of expressing concentration?

molarity

saturated

normality

mole fraction

A

saturated

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12
Q
  1. The process whereby a solvent flows through a semipermeable membrane into a solution.

diffusion

osmosis

effusion

electrolysis

A

osmosis

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13
Q
  1. An electron pair acceptor is

Bronsted-lowry base

Bronsted-lowry acid

Lewis base

Lewis acid

A

Lewis acid

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14
Q
  1. A chemical change in which a substance loses electrons and thus increases in oxidation number.

oxidation

reduction

combination

decomposition

A

oxidation

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15
Q
  1. A reaction in which the products that are formed react to form the original reactants.

reversible

irreversible

redox

chemical

A

reversible

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16
Q
  1. It states that if a stress is applied to a system at equilibrium, the system will shift, if possible, in such a way as to reduce the stress.

Law of mass action

Le Chatelier’s principle

Rate law

Pauli exclusion principle

A

Le Chatelier’s principle

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17
Q
  1. In the reaction Na + Cl2 NaCl, what is the oxidizing agent?

NaCl

Cl

Na

Cl2

A

Cl2

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18
Q
  1. Choose the correct statement about a family of elements in the periodic table.

The atoms of all elements in a family have the same number of shells of electrons.

All elements in a family have the same physical state.

All elements in a family have the same chemical reactivity.

The atoms of all elements in a family have the same number of valence electrons.

A

The atoms of all elements in a family have the same number of valence electrons.

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19
Q
  1. The number that expresses the oxidation state of an atom of an element or groups of atoms is called the

indicator

valence

displacement factor

electrolyte

A

valence

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20
Q
  1. An uneven sharing of electrons between two atoms indicate

bonding

coupling

electronegativity

polarity

A

polarity

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21
Q
  1. The energy required to knock-off electrons from a neutral atom.

activation energy

ionization potential

transition energy

atomic energy

A

ionization potential

22
Q
  1. The temperature at which a substance starts to burn.

boiling point

kindling temperature

ignition point

combustion temperature

A

kindling temperature

23
Q
  1. According to Bronsted - Lowry theory, an acid is a substance that can

accept an electron pair

accept a proton

donate an electron pair

donate a proton

A

donate a proton

24
Q
  1. What law governs the rate of reaction of a substance?

conservation of mass

Arrhenius law

law of mass action

Avogadro’s law

A

law of mass action

25
Q
  1. In which colligative property (ies) does the value decrease as more solute is added?

boiling point

freezing point

osmotic pressure

freezing point & vapor pressure

A

freezing point & vapor pressure

26
Q
  1. In condensation polymerization, the most common molecule eliminated is

ammonia

carbon dioxide

methane

water

A

water

27
Q
  1. A superconductor

has zero resistance below some temperature

conducts heat very effectively at room temperature

has high electrical resistance

is unlikely to be a ceramic material

A

has zero resistance below some temperature

28
Q
  1. In which case are adhesive forces involved?

viscosity

surface tension

capillary action

thermal conductivity

A

capillary action

29
Q
  1. Which of the following is the most disordered?

gas near the condensation temperature

solid near the melting point

liquid near the freezing point

solid at very low temperature

A

gas near the condensation temperature

30
Q
  1. Which one of the following is not a characteristic of a liquid?

does not expand to fill the container

flows readily

is almost incompressible

diffusion within it occurs rapidly

A

diffusion within it occurs rapidly

31
Q
  1. Metallic elements are found where in the periodic table?

in the far left-hand and far right-hand groups

in the left-hand and middle groups

in the middle of the table and Group VIII A

only in Groups IA and IIA

A

in the left-hand and middle groups

32
Q
  1. Metals have

both high electrical and high thermal conductivity

low cohesive strength and high luster

high electrical but low thermal conductivity

high luster and low ductility

A

both high electrical and high thermal conductivity

33
Q
  1. Nonmetals are

malleable but not ductile

very reactive with acids

good conductors of electricity

able to form halides, which react with water to form an oxyacid

A

able to form halides, which react with water to form an oxyacid

34
Q
  1. The halogens

will not react with each other

form strong oxyacids of the formula HOX3

are strong electron donors

form strong covalent bonds wit group IA

A

form strong oxyacids of the formula HOX3

35
Q
  1. The rise of liquids up very narrow tubes is called

surface tension

capillarity action

viscosity

buoyant force

A

capillarity action

36
Q
  1. A material which exhibits rubbery or elastic behavior.

Plastic

Elastomer

Thermoplastic

Copolymers

A

Elastomer

37
Q
  1. A polymer additive which reduce the extent of interaction between chains and thus make the polymer more pliable.

flame retardants

plasticizers

fibers

reinforcement

A

plasticizers

38
Q
  1. Natural rubber is formed from liquid resin derived from the inner bark of the Hevea brasiliensis tree, chemically, it is a polymer of _____.

isoprene

neoprene

isooctane

polyethylene

A

isoprene

39
Q
  1. It is a substance that exhibits one or more ordered phases at a temperature above the melting point of the solid.

thermoplastic

plastics

liquid crystal

biomaterials

A

liquid crystal

40
Q
  1. In some cases substances must be moved from an area of low concentration to one of high concentration. This movement is called _____.

osmosis

hemolysis

diffusion

active transport

A

active transport

41
Q
  1. A hydrocarbon derivative in which one or more hydrogen of a parent hydrocarbon have been replaced by a hydroxyl functional group, OH.

carboxylic acid

esters

alcohols

ethers

A

alcohols

42
Q
  1. It is a product of the fermentation of carbohydrates such as sugar and starch.

methanol

ethanol

dimethyl ether

ethanoic acid

A

ethanol

43
Q
  1. Compounds in which two hydrocarbon groups are bonded to one oxygen are called

ethers

esters

phenols

amines

A

ethers

44
Q
  1. Which of the following has no carbonyl group?

aldehydes

ketones

carboxylic acids

ethers

A

ethers

45
Q
  1. The hydrolysis of an ester in the presence of a base is called ____.

esterification

saponification

alkylation

condensation

A

saponification

46
Q
  1. It refers to adherence to a surface.

adsorption

absorption

desorption

osmosis

A

adsorption

47
Q
  1. It is a particle that has the same mass as an electron but an opposite charge.

beta particle

neutrino

positron

nucleon

A

positron

48
Q
  1. Which of the following indicators is yellow in acidic solution and blue in basic solution?

HpH

thymol blue

bromthymol blue

methyl orange

A

bromthymol blue

49
Q
  1. A substance that is capable of acting as either an acid or a base.

buffer

amphoteric

lewis acid

lewis base

A

amphoteric

50
Q
  1. Ionic solutions change the boiling and freezing points ______ nonelectrolytes.

more than

less than

the same as

inversely compared to

A

more than

WAZZAP (31 decks)

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