Science Final Exam Quiz

What type of bond involves the transfer of electrons from one atom to another?

• A) Ionic Bond
• B) Covalent Bond
• C) Metallic Bond
• D) Hydrogen Bond

Which of the following is a characteristic of metals?

• A) Poor conductors of heat
• B) Dull appearance
• C) Malleable and ductile
• D) Low density

What is the primary reason for the formation of covalent bonds?

• A) To transfer electrons
• B) To share electrons
• C) To create ions
• D) To form metallic lattices

Which of the following best describes the term 'electronegativity'?

• A) The ability to conduct electricity
• B) The tendency of an atom to attract electrons
• C) The mass of an atom
• D) The size of an atom

What happens to the boiling point of water at higher altitudes?

• A) It increases
• B) It decreases
• C) It remains the same
• D) It becomes unpredictable

Which type of reaction involves the breaking down of a compound into simpler substances?

• A) Synthesis
• B) Decomposition
• C) Single Replacement
• D) Double Replacement

What is the primary function of the mitochondria in a cell?

• A) Protein synthesis
• B) Energy production
• C) Photosynthesis
• D) Cell division

Which of the following statements about acids is true?

• A) They taste bitter
• B) They turn litmus paper blue
• C) They release hydrogen ions in solution
• D) They are slippery to the touch

What is the role of enzymes in biological reactions?

• A) To slow down reactions
• B) To increase the activation energy
• C) To act as catalysts
• D) To change the products of reactions

Which of the following best describes the process of photosynthesis?

• A) Conversion of glucose to energy
• B) Conversion of light energy into chemical energy
• C) Breakdown of carbon dioxide
• D) Release of oxygen into the atmosphere