ADDITIONAL-REVIEWER chem Q2 PDF

Additional Reviewer 1. What is meant by condensation reaction? A. It is commonly observed during biological processes such as production of protein. B. It is a reaction between two or more molecule and releases water molecule as a product. C. It is an exother...

Additional Reviewer 1. What is meant by condensation reaction? A. It is commonly observed during biological processes such as production of protein. B. It is a reaction between two or more molecule and releases water molecule as a product. C. It is an exothermic process, wherein the end-product is always carbon dioxide and water. D. It is a reaction between five molecules, forming a smaller and same molecule. 2. Which of the following steps are included in preparing an aldehyde? I. Reduction of esters II. Oxidation of alcohols III. Hydration of alkenes IV. Oxidation of aldehydes A. I and II B. II and III C. III and IV D. I and IV 3. Why are nucleic acids considered as the most important of all biomolecules? A. They are found in abundance in all living things and function to transmit and express information inside and outside the cell nucleus. B. The term nucleic acid is the overall name for DNA and RNA. C. The encoded information is contained and conveyed via the nucleic acid sequence. D. It is built up of the linear polymers of amino acids. 4. What are the features that makes an aldehyde and ketone similar with each other? A. They are polar, both consists of double bond between carbon and oxygen and has any hydrocarbon group attached to carbon. B. It is both polar and they also have slightly higher boiling and melting points than alkanes. C. It is both consists of triple bond between nitrogen and carbon, and a single bond between hydrogen and oxygen. D. The functional group in aldehydes and ketones are the carbonyl and hydroxyl group. 5. Which of the following best describes an ester? A. Esters have the general formula R‘-COOR. They are used in the production of perfumes and as flavoring agents. B. Esters have the general formula R‘-COR. They are used in the production of perfumes and as flavoring agents. C. Esters have the general formula R‘-C-R. They are used in the production of perfumes and as flavoring agents. D. Esters have the general formula R‘-C-R. They are used in the production of gas and fuels. 6. What is meant by structural isomerism? A. Organic compounds made out of carbon and hydrogen. B. Organic compounds that have different molecular formula but same properties. C. Organic compounds that have the same molecular formula but different properties. D. Organic compounds that are made out of carbon, oxygen and hydrogen, thus making it a polar molecule. 7. Which of the following best describes addition reaction? A. It takes place to a hydrocarbon with multiple bonds (those who have single and double bonds) and components A and B are deducted to the bonds being broken. B. It takes place to a hydrocarbon with multiple bonds (those who have single and double bonds) and components A and B are added to the bonds being broken. C. It takes place to a hydrocarbon with multiple bonds (those who have double and triple bonds) and components A and B are added to the bonds being broken. D. It takes place to a hydrocarbon with multiple bonds (those who have double and triple bonds) and components A and B are deducted to the bonds being broken. 8. Which of the following would form a polyester after their reaction? A Dicarboxylic acid and dialcohols B. Dicarboxylic acids and diammides C. Dialcohols and alkane D. Alkenes and alkynes 9. What are the basis used in classifying polymers? A. Polymers are classified based on cost. B. Polymers are classified based on functionality. C. Polymers are classified based on source and structure. D. Polymers are classified based on strength and structure. 10. Which of the following best describes an ether? A. Ethers contain the R-O-R‘ linkage, where R and R‘ are hydrocarbon. They are polar and soluble in water, and they are extremely flammable. B. Ethers contain the R-O-R‘ linkage, where R and R‘ are hydrocarbon. They are slightly polar and slightly soluble in water, but they are extremely flammable. C. Ethers contain the C-O-C‘ linkage, where C and C‘ are polar carbon atom. They are always polar and soluble in water, but they are extremely flammable. D. Ethers contain the C-O-C‘ linkage, where C and C‘ are polar carbon atom. They are never polar and soluble in water, but they are extremely flammable. 11. When linear chains of a polymer form branch, then, such polymers are categorized as branched chain polymers. What is the effect of these branches? I. Less mass II. Low density III. Low melting point IV. Low thermal conductivity A. I and II B. II and III C. III and IV D. I and IV 12. Polymer is a large molecule composed of repeating structural units, called monomers, that are covalently bonded together. Which of the following statements is/are TRUE about linear polymers? A. These polymers have low freezing points and high volume. B. A linear polymer is simply a chain in which all of the carbon-hydrogen bonds exist in a single straight line. C. The arrangement of the pendant atoms/groups attached to the backbone gives different properties to the polymer. D. In this type of polymers, monomers back bones and pendant atoms are linked together to form a three-dimensional network. 13. Which of the following are examples of functional group isomerism? I. Propanal and Propanone II. Ethanol and Dimethyl ether III. Propanoic acid and Ethyl methanoate IV. 1,1-dichloroethane and 1,2-dichloroethane A. I only B. I and II C. I, II and III D. IV only 14. Which of the following set of polymers exhibits similar properties? A. polystyrene, melamine, bakelite and polyamides B. polyethylene, PVC, polystyrene, and polyamides C. polyester fiberglass, adhesives, vulcanized rubber and PVC D. polystyrene, melamine, polyester fiberglass, vulcanized tire 15. How are disaccharides similar to monosaccharides? A. These are made up of two or more monosaccharides joined together by a condensation reaction. B. These are made up of two or more monosaccharides joined together by a condensation reaction. C. These are made up of two or more monosaccharides joined together by a combustion reaction. D. These are made up of two monosaccharides joined together by a combustion reaction. 16.. Which of the following best describes the structure of a lipid? A. In the fatty acid chains, the carbon atoms could have single bonds between them making the lipid “saturated”. This generates fats that are usually solid at room temperature. B. In the fatty acid chains, the carbon atoms could have double bonds between them making the lipid “saturated”. This generates fats that are usually liquid at room temperature. C. In the fatty acid chains, the carbon atoms could have double bonds between them making the lipid “saturated”. This generates fats that are usually solid at room temperature. D. In the fatty acid chains, the carbon atoms could have double bonds between them making the lipid “unsaturated”. This generates fats that are usually liquid at room temperature. 17. How do we prepare selected organic compounds? A. Replacement and elimination of molecules are involved. B. They are prepared through organic synthesis. C. The preparation is being done in a laboratory. D. Organic compounds are prepared through freezing. 18. What is the composition of a carboxyl functional group? A. A double bond between C and C, and OH attached to either C. B. A double bond between C and O, and OH attached to C. C. A double bond betwxeen C and O, and OH attached to O. D. A double bond between C and N, and OH attached to N. 19. Which of the following best describes cross-linked polymers? A. In this type of polymers, monomers are linked together to form a two-dimensional network. These polymers are brittle and hard. B. In this type of polymers, monomers are linked together to form a three-dimensional network. These polymers are brittle and hard. C. In this type of polymers, carbon-carbon bonds exist in a single straight line. These polymers are brittle and hard. D. In this type of polymers, carbon-carbon bonds exist in a single straight line. These polymers are elastic. 20. Which of the following are the common function/s of protein? A. Helps to protect and insulate the body, acts as major component of cell walls in plants. B. Antibodies, provides support to connective tissues, and facilitate biochemical reactions. C. Serve as messenger proteins to help coordinate some body functions and store amino acids. D. Responsible for body movement such as muscle contraction