Organic Chemistry

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Q. What is the product of the reaction of an alcohol with a carboxylic acid?
  • A. Ester
  • B. Ether
  • C. Aldehyde
  • D. Ketone
Q. What is the product of the reaction of chlorobenzene with sodium hydroxide at high temperature?
  • A. Phenol
  • B. Benzene
  • C. Chlorobenzene
  • D. Sodium chloride
Q. What is the product of the reaction of ethylene with chlorine?
  • A. Ethyl chloride
  • B. 1,2-dichloroethane
  • C. Chloroethane
  • D. Ethylene dichloride
Q. What is the product of the reaction of propene with HBr?
  • A. 1-Bromopropane
  • B. 2-Bromopropane
  • C. Propyl bromide
  • D. Bromopropene
Q. What is the product when propan-2-one reacts with iodine in the presence of a base?
  • A. Iodoform
  • B. Bromoform
  • C. Chloroform
  • D. No reaction
Q. What is the repeating unit in polyethylene?
  • A. -CH2-CH2-
  • B. -C6H5-
  • C. -C3H6-
  • D. -C2H4-
Q. What is the role of antioxidants in food?
  • A. Enhancing flavor
  • B. Preventing spoilage
  • C. Reducing oxidation
  • D. Increasing acidity
Q. What is the role of antioxidants in the body?
  • A. Increase energy
  • B. Prevent oxidation
  • C. Enhance digestion
  • D. Boost immunity
Q. What is the role of ATP in cells?
  • A. Storage of genetic information
  • B. Energy currency
  • C. Structural component
  • D. Signal transduction
Q. What is the role of caffeine in coffee?
  • A. Antioxidant
  • B. Stimulant
  • C. Sedative
  • D. Digestive aid
Q. What is the role of emulsifiers in food products?
  • A. Thickeners
  • B. Stabilizers
  • C. Flavor enhancers
  • D. Coloring agents
Q. What is the role of enzymes in biochemical reactions?
  • A. Increase activation energy
  • B. Decrease activation energy
  • C. Change the equilibrium of the reaction
  • D. Provide energy for the reaction
Q. What is the role of enzymes in biological systems?
  • A. To provide structural support
  • B. To act as catalysts for biochemical reactions
  • C. To store genetic information
  • D. To transport molecules across membranes
Q. What is the role of histamines in the body?
  • A. To promote sleep
  • B. To regulate blood sugar
  • C. To trigger allergic reactions
  • D. To enhance digestion
Q. What is the role of RNA in protein synthesis?
  • A. Storage of genetic information
  • B. Transcription of DNA
  • C. Translation of proteins
  • D. Both transcription and translation
Q. What is the simplest form of carbohydrate?
  • A. Disaccharide
  • B. Monosaccharide
  • C. Polysaccharide
  • D. Oligosaccharide
Q. What is the structural formula for 2-methylpropane?
  • A. CH3-CH2-CH(CH3)-CH3
  • B. CH3-CH(CH3)-CH2-CH3
  • C. CH3-CH2-CH2-CH3
  • D. CH3-CH2-CH(CH2)-CH3
Q. What is the structural formula for hexane?
  • A. C6H14
  • B. C5H12
  • C. C4H10
  • D. C3H8
Q. What is the structural formula of 2-methylpropane?
  • A. CH3-CH2-CH(CH3)-CH3
  • B. CH3-CH(CH3)-CH2-CH3
  • C. CH3-CH2-CH2-CH3
  • D. CH3-CH2-CH(CH2)-CH3
Q. What is the structural formula of propane?
  • A. C3H8
  • B. C2H6
  • C. C4H10
  • D. C5H12
Q. What is the structure of DNA?
  • A. Single-stranded
  • B. Double helix
  • C. Triple helix
  • D. Linear
Q. What role do enzymes play in biological systems?
  • A. They provide structural support
  • B. They act as catalysts for biochemical reactions
  • C. They store genetic information
  • D. They transport molecules across membranes
Q. What type of alcohol is isopropanol?
  • A. Primary
  • B. Secondary
  • C. Tertiary
  • D. None of the above
Q. What type of biomolecule are enzymes classified as?
  • A. Carbohydrates
  • B. Proteins
  • C. Lipids
  • D. Nucleic acids
Q. What type of biomolecule is insulin?
  • A. Carbohydrate
  • B. Lipid
  • C. Protein
  • D. Nucleic acid
Q. What type of bond forms between the carboxyl group of one amino acid and the amino group of another?
  • A. Hydrogen bond
  • B. Ionic bond
  • C. Peptide bond
  • D. Disulfide bond
Q. What type of bond is formed between amino acids in a protein?
  • A. Ionic bond
  • B. Covalent bond
  • C. Hydrogen bond
  • D. Van der Waals forces
Q. What type of bond is formed between the amino group of one amino acid and the carboxyl group of another?
  • A. Ionic bond
  • B. Hydrogen bond
  • C. Peptide bond
  • D. Covalent bond
Q. What type of bond is primarily responsible for the secondary structure of proteins?
  • A. Ionic bonds
  • B. Hydrogen bonds
  • C. Covalent bonds
  • D. Disulfide bonds
Q. What type of bond links amino acids in proteins?
  • A. Ionic bond
  • B. Covalent bond
  • C. Hydrogen bond
  • D. Van der Waals forces
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