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Chemistry Quarter 2 Review

Total questions: 71

Worksheet time: 36mins

Name
Class
Date
1.

The principle states that it is impossible to know the exact position and momentum of an electron

a)

Aufbau’s Principle

b)

Heisenberg Uncertainty principle

c)

Hund’s Rule

d)

Pauli Exclusion Principle

2.

Of the quantum numbers, what letters represents the energy level?

a)

L

b)

ml

c)

ms

d)

n

3.

The electron configuration of helium is 1s2,2s2. Which electron in helium has more energy?

a)

The electron in 1s1

b)

The electron in 1s2

c)

The electron in 2s2

d)

None of the above

4.

What are the four quantum numbers of helium in this order: n, l, ml, ms?

a)

1,0,0,1/2

b)

1,0,0,-1/2

c)

2,0,0,1/2

d)

2,0,0,-1/2

5.

What is the quantum number that gives the 3D orientation of each orbital?

a)

Angular momentum quantum number

b)

Magnetic quantum number

c)

Electron spin quantum number

d)

Principal Quantum number

6.

What are the four quantum numbers of hydrogen in this order: n,l,ml,ms?

a)

1,0,0,1/2

b)

1,0,0,-1/2

c)

2,0,0,1/2

d)

2,0,0,-1/2

7.

What is the electron configuration of Beryllium?

a)

1s2, 2s2

b)

1s2 2p2 2d2

c)

1s2 2p5

d)

1s2 2s2 2p6

8.

Which element has the following electron configuration: 1s2, 2s2, 2p6

a)

Fluorine

b)

Neon

c)

Nitrogen

d)

Oxygen

9.

What is the magnetic property of a substance that does not have any unpaired electrons?

a)

Diamagnetic

b)

Ferromagnetic

c)

Paramagnetic

d)

None of the above

10.

What is the magnetic property of a substance that has atleast 1 unpaired electrons?

a)

Diamagnetic

b)

Ferromagnetic

c)

Paramagnetic

d)

None of the above

11.

Which of the following elements is being represented by this orbit?

a)

Fluorine

b)

Neon

c)

Nitrogen

d)

Oxygen

12.

Which of the orbital diagrams is being represented by this electron configuration: 1s2, 2s2?

a)

b)

c)

d)

13.

Which of the following element has an electron configuration that ends with 3s2

a)

Magnesium

b)

Nitrogen

c)

Oxygen

d)

Sodium

14.

Which of the following has the biggest atomic size?

a)

Cesium

b)

Lithium

c)

Francium

d)

Sodium

15.

Nitrogen belongs to group 5 in the periodic table. How many valence electrons does it have?

a)

8

b)

7

c)

6

d)

5

16.

This family is known as the most reactive metals.

a)

Alkali metals

b)

Noble gases

c)

Transition metals

d)

Halogens

17.

When sodium metal is placed on water, it explodes. Which of the following elements has the same property

a)

Magnesium

b)

Potassium

c)

Iron

d)

Copper

18.

Which of the following has the greatest electronegativity?

a)

Aluminum

b)

Sulfur

c)

Phosphorus

d)

Magnesium

19.

Which of the following has the greatest electronegativity

a)

Aluminum

b)

Chlorine

c)

Magnesium

d)

Sodium

20.

Which of the following has 8 electrons on its outermost shell?

a)

Fluorine

b)

Nitrogen

c)

Neon

d)

Carbon

21.

Which of the following states that the element that has 8 electrons on its valence shell is stable?

a)

Hund’s Rule

b)

Pauli exclusion principle

c)

8- electron rule

d)

Octet Rule

22.

Magnesium belongs to group 2. It has 2 electrons in its valence shell that it usually donates. When it does, it turns into an ion. What would be its charge?

a)

1+

b)

1-

c)

2+

d)

2-

23.

Oxygen has 6 electrons on its outermost shell. If you draw the lewis structure of oxygen, how many dots will you draw around its chemical symbol?

a)

6

b)

7

c)

8

d)

9

24.

What is the formula of potassium chloride?

a)

KCl

b)

NaCl

c)

MgCl2

d)

CaCl2

25.

Name this compound: Fe2O3

a)

Di-iron trioxide

b)

Iron oxide

c)

Iron (II) Oxide

d)

Iron (III) oxide

26.

Which of the following is not a property of ionic compounds?

a)

Crystal formation

b)

Hard and brittle

c)

High Melting point

d)

Low boiling point

27.

Which type of bonding happens when elements share (and not donate) electrons?

a)

Covalent bonding

b)

Polar bonding

c)

Ionic Bonding

d)

Metallic Bonding

28.

Which combination results to the saponification of fats

a)

Oil and H2O

b)

Sodium Hydroxide and oil

c)

Sodium Hydroxide and Ethanol

d)

Potassium Hydroxide and Acetone

29.

This type of reaction means “to put together while losing water”

a)

Hydrogenation

b)

Oxidation

c)

Hydrolysis

d)

Dehydration synthesis

30.

Which of the following is not an example of a polymer?

a)

Carbohydrates

b)

Proteins

c)

Fats

d)

Nucleic acid

31.

It is the extent to which the polymer chains are arranged in a regular structure instead of a random fashion

a)

Porosity

b)

Surface Area

c)

Crystallinity

d)

Flammability

32.

These are large biomolecules comprised of one or more long chains of amino acids.

a)

Carbohydrates

b)

Proteins

c)

Lipids

d)

Nucleic Acids

33.

Which nitrogenous base is not present in human DNA?

a)

Cytosine

b)

Uracil

c)

Adenine

d)

Guanine

34.

This biomolecule is composed of a ribose, a phosphate group and a nitrogenous base.

a)

Carbohydrate

b)

Protein

c)

Lipid

d)

Nucleic Acid

35.

The valence electrons in oxygen is 6. How many electrons does it have in its outermost shell after it bonded with 2 hydrogen atoms to form a water molecule?

a)

10

b)

4

c)

16

d)

8

36.

What is the formula for the compound carbon monoxide?

a)

CO

b)

CH4

c)

H2O

d)

N2O

37.

Which of the following is not a characteristics of covalent compounds?

a)

Low boiling point

b)

Low conductivity

c)

Low melting Point

d)

None of the above

38.

What is the type of bond present in HCl if the electronegativity of H is 2.2 and the electronegativity of Cl is 3.16?

a)

Nonpolar

b)

Ionic Bond

c)

Polar

d)

Metallic Bond

39.

What is the geometry or shape of NF3 or nitrogen trifluoride?

a)

Hexagonal

b)

Tetrahedral

c)

Trigonal pyramidal

d)

Octahedral

40.

What is the reason why water does not mix with oil?

a)

Oil is polar and water is nonpolar

b)

Water is polar and oil is nonpolar

c)

Oil is polar and water is polar

d)

Water is nonpolar and oil is nonpolar

41.

Which of the following has a higher melting point?

a)

Salt

b)

oil

c)

Carbon dioxide

d)

Sugar

42.

Which of the following is not a characteristic of Carbon?

a)

It forms four covalent bonds

b)

It is represented by the symbol C.

c)

It is tetravalent

d)

It is under alkali earth metals

43.

Which oof the following is NOT a characteristics of organic compounds?

a)

Mostly includes carbon, hydrogen and nitrogen

b)

Mostly polar

c)

Mostly insoluble in water

d)

Mostly nonpolar

44.

How many carbon-carbon sigma bonds are present in ethane?

a)

1

b)

2

c)

3

d)

4

45.

How many pi bonds are present in ethane

a)

1

b)

2

c)

3

d)

4

46.

Which of the following functional group has the highest priority?

a)

Carboxylic acids

b)

Alkyls

c)

Alcohols

d)

Amines

47.

Which of the following hydrocarbons have a carbon-carbon double bond?

a)

Methane

b)

Benzene

c)

Ethyne

d)

Propane

48.

Carbohydrates, which is the main source of energy in our body, has which of the following functional groups?

a)

Hydroxyl

b)

Carboxyl

c)

Sulfhydryl

d)

Amino

49.

Of the quantum numbers, what letter represents the shape of the orbital?

a)

l

b)

ml

c)

ms

d)

n

50.

Of the quantum numbers, what letter represents the spin of the electron?

a)

n

b)

l

c)

ms

d)

ml

51.

Of the quantum numbers, what letter represents the orientation or rotation of the orbitals?

a)

l

b)

ml

c)

ms

d)

n

52.

What is the quantum number that describes the energy level where the electrons can be found

a)

Principal Quantum Number

b)

Magnetic Quantum Number

c)

Spin Quantum Number

d)

Angular Momentum Quantum Number

53.

What is the quantum number that refers to the type of orbitals?

a)

Principal Quantum Number

b)

Spin Quantum Number

c)

Angular Momentum Quantum Number

d)

Magnetic Quantum Number

54.

What is the quantum number that describes the spin of electron

a)

Orbital Quantum Number

b)

Angular Momentum Quantum Number

c)

Magnetic Quantum Number

d)

Electron Spin Quantum Number

55.

Which group does the alkali metals belong to?

a)

p

b)

s

c)

d

d)

f

56.

Which group does the noble gases belong to?

a)

s

b)

p

c)

d

d)

f

57.

Which group does the lanthanides belong to

a)

d

b)

s

c)

f

d)

p

58.

Copper belongs to which of the following groups

a)

Early transition metals

b)

Halogens

c)

Noble Gases

d)

Late transition metals

59.

Which of the following is a metalloid?

a)

Iron

b)

Gold

c)

Platinum

d)

Silicon

60.

Which of the following is a metal?

a)

Sodium

b)

Carbon

c)

Oxygen

d)

Xenon

61.

Which of the following is a non-metal?

a)

Argon

b)

Mercury

c)

Potassium

d)

Calcium

62.

The columns in the periodic table of elements are called?

a)

Groups

b)

Periods

c)

Trends

d)

None of the above

63.

The horizontal rows of elements in the periodic table are called?

a)

Groups

b)

Period

c)

Trends

d)

None of the Above

64.

This group of elements have 7 valence electrons

a)

Halogens

b)

Alkali metals

c)

Noble Gases

d)

Transition Metals

65.

The energy needed to remove the outermost electron?

a)

Gravitational Energy

b)

Electromagnetic Energy

c)

Ionization Energy

d)

Kinetic Energy

66.

This is also known as the positively charged ion

a)

Anion

b)

Cation

c)

Electron

d)

Proton

67.

This is also known as the negatively charged ion.

a)

Proton

b)

Neutron

c)

Anion

d)

Electron

68.

How many covalent bonds do halogens and hydrogen form?

a)

1

b)

2

c)

3

d)

4

69.

How many covalent bonds does oxygen form?

a)

1

b)

2

c)

3

d)

4

70.

How many covalent bonds does nitrogen form?

a)

1

b)

3

c)

4

d)

2

71.

How many covalent bonds do carbon and silicon form?

a)

1

b)

2

c)

3

d)

4

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