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PHYSICAL SCIENCE- QUARTER 1

Quiz by SUZETTE PAGUIO

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25 questions
Show answers
  • Q1

    It is a process where heavy elements are produced within the stars.

    Supernova     

    Stellar Nucleosynthesis

    BigBang Nucleosynthesis

    NuclearReaction

    30s
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  • Q2

    These are the abundant elements in the Big Bang Nucleosynthesis

    Helium and Hydrogen                                    

    Nitrogen and Chlorine

    Argon and Krypton

    Hydrogen and Nitrogen

    30s
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  • Q3

    It refers to the number of protons in the nucleus of an element.

    Molecular Geometry

    Mass Number

    Atomic Number

    Electronegativity

    30s
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  • Q4

    The total number of protons and neutrons in the nucleus of an atom.

    Electronegativity

    Molecular Geometry

    Atomic Number

    Mass Number

    30s
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  • Q5

    How many protons are in the Potassium atom?

    Question Image

    -20

    20

    39

    19

    30s
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  • Q6

    Which of the following elements contains 17 electrons in their neutral form?

    Question Image

    K

    O

    Al

    Cl

    30s
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  • Q7

    How many neutrons are there in the aluminum atom?

    Question Image

    24

    14

    -1

    13

    30s
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  • Q8

    Which of the following statement is true?

    Question Image

    The Carbon atom has 6 protons, 6 electrons and 12 neutrons

    The Oxygen atom has 8 protons, 8 electrons and 6 neutrons

    The Oxygen atom has 8 protons, 8 electrons and 16 neutrons

    The Carbon atom has 6 protons, 6 electrons and 6 neutrons

    30s
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  • Q9

    There is a transfer of one or more valence electrons form one atom to another     

    Polar Molecules

    Non-Polar Molecules

    Ionic Bond

    Covalent Bond

    30s
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  • Q10

    Result through the sharing of electrons.

    Ionic Bond

    Polar Molecules

    Covalent Bond

    Non-Polar Molecules

    30s
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  • Q11

    Measures the relative tendency of an atom to attract electrons to itself when chemically combined with other atoms. 

    Non-polar Covalent Bonding

    Electronegativity

    Polar Covalent Bonding

    Nuclear Fusion

    30s
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  • Q12

    Which of the following among the intermolecular forces is weakest?

    Ion-Dipole Force

    Dipole-dipole force

    Covalent Bond

    Dispersion force

    30s
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  • Q13

    Which of the following among the intermolecular forces is considered the strongest?

    Covalent bond

    Ion-Dipole Force

    Dispersion Force

    Dipole-dipole force

    30s
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  • Q14

    You are tasked for the dishwashing duties of the oily pans and utensils following your dinner of deep-fried food. First, you scrape excess food then rinse it with water. You noticed that the grease does not mix with water.  What can you infer from this observation? Recall that the general rule for deciding if one substance is capable of dissolving another is “like dissolves like.”

    When nonpolar liquid such as oil is mixed with water which is nonpolar, two separate layers form because the liquids will not dissolve into each other.

    None of the choices are correct because oil is miscible or can dissolve with water.

    Both a and b are correct

    When a nonpolar liquid such as oil is mixed with water which is polar, two separate layers form because the liquids will not dissolve into each other.

    30s
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  • Q15

    What do you call the dipole-dipole attraction between hydrogen atom and electronegative

    elements F, O, and N?

    Covalent bond

    Hydrogen Bond

    Dipole-Dipole force

    Ion-Dipole force

    30s
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  • Q16

    What force of attractions involved between K+ and H2O when KCl interacts with H2O?

    Dipole-dipole

    Ion-dipole 

    Hydrogen bond

    Dispersion

    30s
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  • Q17

    Which of the following describes why the boiling point of CH4 (-161.6 °C) is much lower than

    that of HF (19.5 °C)?  

    The boiling point is higher in HF because the hydrogen bonding in HF is stronger than the attractive forces in CH4.

    The boiling point is higher in HF because CH4 is polar.

    The boiling point is higher in HF because of the weaker ion-dipole interactions in CH4.

    The boiling point is higher in HF because of the weaker dipole-dipole interactions in CH4.

    30s
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  • Q18

    Group of biological macromolecules that are composed out of carbon (C), hydrogen (H),oxygen (O), nitrogen (N), and phosphorus (P)

    Lipids

    Proteins

    Nucleic Acids

    Carbohydrates

    30s
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  • Q19

    Which of the following organic compounds is the main source of energy for living things?

    Proteins

    Lipids

    Carbohydrates

    Nucleic Acids

    30s
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  • Q20

    What are the four macromolecules?

    RNA,DNA, proteins, and carbohydrates

    monosaccharides, lipids, polysaccharides, and proteins

    carbohydrates, lipids, nucleic acids, and protein

    proteins,DNA, RNA, and steroids

    30s
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