Medical Chemistry Practice Test

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• What is a key difference between cellulose and glycogen?
• The citric acid cycle is part of aerobic respiration because
• Which pH is ten times more acidic than a solution with pH 5?
• At the isoelectric point the net charge of amino acids is
• Which type of bonding results from the electrostatic force of attraction between positively and negatively charged ions?
• CH3CH2COCH3 is the chemical formula of which compound?
• What term describes a substance with a pH less than 7?
• What is the concentration of a solution?
• The equilibrium constant (Kc) describes the relationship between what at equilibrium?
• Which statement best describes HF?
• At the isoelectric point, amino acids are
• RR'CHOH and RCH2OH are which types of alcohols?
• Would you normally expect neon to form compounds?
• In the redox reaction, which substance acts as the oxidizing agent?
• The pH scale is a range from which values?
• In complex formation, the central metal atom or ion acts as a ______.
• Two monosaccharides join to form a disaccharide via what type of bond?
• An ion with 9 protons and 11 electrons would have a net charge of
• In the solubility product expression for Sn(OH)2, the exponent on hydroxide is
• Which statement best describes a buffer solution?
• Which substance has a neutral pH of 7?
• Which monosaccharides combine to form the disaccharide Sucrose?
• Which structural feature connects amino acids in a protein?
• Which compound is an aldehyde?
• When ClO3- is oxidized, a possible product is
• Dalton's law describes the relationship between the total pressure of a gas mixture and the partial pressures of its components.
• Acid-catalyzed hydrolysis of an ester produces which two products?
• Aldehydes typically contain a carbonyl group bonded to which atom?
• According to Avogadro's law, a volume of a gas depends on
• In Na2[Pt(CN)4], what is the charge on the complex ion [Pt(CN)4]?
• Which statement best describes covalent bonding?
• What is the IUPAC name for CH2=CH-CH2-CH3?
• What substituent is on anisole?
• Butanal contains which functional group?
• Among the following families, which is least soluble in water?
• Which statement is true about propanal?
• Which compound is a disaccharide?
• How many electrons are shared in a double bond?
• The oxidation state of Cr in [Cr(NH3)4Cl2]- is
• Aromatic compounds usually undergo which type of reaction?
• Aniline is a derivative of benzene which contains which functional group?
• In coordination chemistry, the coordination number is defined as what?
• The shapes of the atomic orbitals within an atom can be described by the
• The general structural formula corresponds to which class of biomolecules?
• Which statement matches a subatomic particle with its charge?
• A substance with a pH greater than 7 is best described as a
• How many structural isomers does pentane have?
• Hydrolysis of a polysaccharide results in monosaccharides. This is an example of which type of reaction?
• Which of the following is an acidic solution?
• Which quantum number is primarily used to describe the energy level and size of an orbital?
• Under Henry's law at constant temperature, the dissolved gas concentration changes in what way as gas pressure increases?
• The number of ligands directly bonded to the central metal in a coordination complex is called?
• What is it called when matter changes from one state of matter to another?
• Why are metals good conductors of electricity?
• Ethyl methyl ether belongs to which class of organic compounds?
• In solution chemistry, what term defines the substance dissolved in a solvent?
• In terms of polarity, aldehydes and ketones are best described as which?
• In the complex [Pt(CN)4]2-, which species acts as a Lewis base?
• Which statement explains why a saturated hydrocarbon has no multiple carbon bonds?
• How many valence electrons does iodine have?
• Which statement best describes electrons?
• In the redox equation O3 + H2O + SO2 → SO4^2- + O2 + 2H+, which species is oxidized?
• Which statement about subatomic particle masses is true?
• Which statement about a neutron is true?
• In the redox reaction SnO2 + 4Cl- + 4H+ = SnCl2 + Cl2 + 2H2O, which species loses electrons?
• Which of these compounds is propanoic acid?
• Which definition describes an acid?
• Which among these is not a structural isomer of the compound C4H8?
• The change in enthalpy is equal to the heat exchanged between a system and its surroundings at constant pressure.
• Which option is a phase of matter?
• Under Avogadro's law, equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
• Which of the following is formed when an acid reacts with an alkali?
• Which statement about proteins and amino acids is true?
• Which of these compounds is propanal?
• In a redox process, what happens to electrons?
• Which of the following are transition metals?
• Which statement best describes the force between molecules?
• Which of the following is NOT a phase of matter?
• Which of the following beverages is commonly acidic?
• Which statement correctly describes isomers?
• The product Ka multiplied by Kb for a reversible acid-base reaction is always equal to the ion-product constant.
• The total pressure of a mixture of gases is equal to which of the following?
• Which product results from acid-catalyzed hydration of pent-1-ene?
• If sodium butanoate reacts with a strong acid, the product is which carboxylic acid?
• Which statement about ATP's role in metabolism best describes its function?
• Aniline contains which functional group?
• DNA and RNA molecules are present in every cell of the body. Which option best reflects this statement?
• In potassium atoms, how many protons are present?
• Denatured proteins lose
• In thermodynamics, if the heat added to a system equals the work done by the system, the change in internal energy is
• What is the product of intramolecular dehydration of the alcohol with structure R-CH2-CH2OH?
• What is the molecular formula for ethyl methyl ether?
• 4-chlorobut-1-ene is the name of which among the following alkenes?
• The change in enthalpy is
• RNA nucleotides contain a sugar called?
• What is the product of intramolecular dehydration of the alcohol with structure R-CH2-CH2OH?
• Polysaccharides are which type of biomolecule class?
• A 3p electron can have possible magnetic quantum number values of
• A solution with pH 7.0 is...
• Which molecules are the main constituents of cell membranes?
• Proteins consist of which units?
• What is the process called when a liquid changes into a solid?
• Which statement correctly describes pH values below 7?
• Which statement correctly describes oxidation in terms of electrons?
• Which statement best describes the Second Law of Thermodynamics?
• Which metabolic pathway converts glucose into two pyruvate molecules?
• Amines have basic properties because of which feature?
• How many valence electrons does the carbon atom have?
• Deoxyribonucleic acid and ribonucleic acid belong to
• Why do atoms form covalent bonds?
• Which compound is an aldehyde?
• Which of the following represents a redox reaction?
• The electron-dot structure of carbon has how many dots?
• If a covalent bond were to be formed between a nitrogen atom (electronegativity 3.0) and an oxygen atom (electronegativity 3.5), which of the following statements would best describe such a bond?
• Which functional group is present in benzoic acid?
• Benzene can undergo which type of reaction, according to classic aromatic chemistry?
• Basic hydrolysis of an amide under basic conditions yields which products?
• What is the formula for ammonium nitrate?
• Which of the following acids is dibasic?
• Which statement about ATP is true?
• The first four alkyl groups respectively are?
• Which statement describes the primary structure of a protein?
• A primary function of cellular respiration is to
• Which option is true about a neutral solution at pH 7?
• How many delocalised electrons are there for each benzene molecule?
• A catalyst
• What is the name of the reaction between an acid and an alkali to form a salt and water?
• An atom of carbon-12 and an atom of carbon-14 differ in
• Which compound corresponds to the structural formula C6H5COOH?
• Select the incorrect statement regarding terminal alkynes.
• The ester formed by reacting ethanol with benzoic acid is called which compound?
• A solution with a pH of 3.6 is...
• Which statement best describes metabolism in living organisms?
• DNA and RNA molecules can be found in which of the following?
• The citric acid cycle is
• Alkenes: which statement is true about their reactivity?
• Which statement about covalent bonds is true?
• Which statement about the IUPAC naming system for aromatic compounds is true?
• What are produced when ethanol burns completely in air?
• According to which theory is an acid defined as an electron pair acceptor?
• Which statement about nucleic acids is true?
• Which statement describes an electron configuration notation?
• In the coordination compound [Co(NH3)2(H2O)2Cl2], what are the coordination number and oxidation number of cobalt?
• Which product results from the basic hydrolysis of an amide?
• Which three factors affect the rate of a chemical reaction?
• A chemical reaction rate relates to which rate of change?
• What is the term for the substance dissolved in a solution?
• The solubility product expression for Sn(OH)2 is
• Charles' law describes the relationship between which two properties of a gas?
• What is the oxidation number of nitrogen in NH4OH?
• Select the incorrect statement regarding alkenes.
• RCH2OH and RR'R''COH are
• Which of the following will lower the activation energy for a reaction?
• Which is the monomer unit of nucleic acids?
• The atomic radii of the elements of the main groups of the periodic table increase
• Sublimation is a change from a solid to gas.
• A neutral solution has a pH of
• Ethylene on reaction with bromine forms which product?
• In a neutral atom, the number of protons equals the number of electrons.
• Which statement is incorrect about activation energy?
• According to the first law of thermodynamics, if heat added to a system exceeds the work done by the system, what happens to the internal energy?
• An atom of any element must contain
• Ketones can be prepared by the oxidation of which type of alcohol?
• In a redox reaction, which particle is transferred between species?
• An increase in temperature
• According to the priority list, which functional group has higher priority: carboxylic acids or aldehydes?
• Which statement correctly identifies the product of intermolecular dehydration of alcohols?
• Which is not a type of element?
• Which property remains constant between carbon-12 and carbon-14?
• Ionization energy in the groups (from top to bottom) of the periodic table
• An ion with 7 protons, 6 neutrons, and 10 electrons has a net charge of
• What is it called when a solid changes into a liquid?
• Which type of molecular orbital is higher in energy and less stable?
• Mendeleev published the first periodic table.
• The reaction of an alcohol with a carboxylic acid to form an ester and water is called what?
• The product of intermolecular dehydration of alcohols is which class of compound?
• Which quantum number is used to describe the orientation of an orbital in space?
• Which statement correctly describes electrons?
• Which molecule is a secondary amine?
• Compounds with the same molecular formula but different structural formulas are known as
• In molecular orbital theory, the energy of the antibonding orbital compared to the bonding orbital is?
• Which option is NOT a structural isomer of C4H8?
• A peptide bond forms between which two molecules?
• Which statement best defines a Lewis acid?
• Which hydrocarbon is a gas at normal temperature and pressure?
• The energy of a bonding molecular orbital is typically what compared to the energy of the atomic orbitals from which it formed?
• The product of reacting benzoyl chloride with ammonia is?
• The citric acid cycle is used by aerobic organisms.
• Why are alkali metals extremely reactive?
• The function of ATP in cells is to be consumed by endothermic processes and produced by exothermic processes in the cell.
• Why do chemists balance chemical equations?
• The synthesis of a protein from amino acids is an example of which metabolic process?
• What type of reaction do alkynes undergo across the triple bond?
• Are aldehydes and ketones polar?
• Which is an example of a physical change?
• Quaternary structure is a level of structure for which biomolecule?
• Which statement correctly describes the law of conservation of mass in chemical reactions?
• What are the products of the reaction between methanol and ethanoic acid?
• The total number of electrons allowed in a ℓ = 1 sublevel is
• Metabolism describes which concept?
• Phospholipids are the main constituents of
• The orientations of the atomic orbitals within an atom can be described by the
• The intermolecular forces are always weaker than the intramolecular forces.
• Which class of amines is represented by the general structure R2NH?
• A buffer solution typically contains a weak acid and which of the following?
• Ketones are characterized by a carbonyl group located where in the carbon skeleton?
• Henry's law describes the relationship between which quantities?
• Butanone contains which functional group?
• If the oxidation number of phosphorus changes from -3 to 0, what happened to phosphorus?
• What is the general molecular formula of aldehydes?
• The alpha-helix and beta-pleated sheet are examples of which protein structure level?
• Which molecule is polar?
• Which statement about the length of carbon–carbon single, double, and triple bonds is true?
• How many delocalised electron are there for each benzene molecule?
• Calcium has an atomic number of 20. A stable calcium atom has an electronic configuration of:
• The energy of an isolated system is always constant.
• Enzymes act as what in organisms?
• Which of the following describes a primary amine?
• Which of the following is NOT one of the three factors that affect the rate of a chemical reaction?
• The biochemical process in which the deamination of amino acids occurs is
• In the redox reaction, the sulfur in SO2 changes oxidation state from +4 to +6; this change is described as:
• Sp3 hybridization involves the hybridization of how many atomic orbitals?
• To determine whether a molecule is polar, which information is needed?
• Saturated hydrocarbons contain which type of carbon-carbon bonds?
• Denatured proteins lose
• RCH2OH represents which class of alcohol?
• Copper has an oxidation number of what in CuBr?
• Which ester is formed when methanol reacts with ethanoic acid?
• Which product is formed when ethyne hydrates under typical conditions?
• Which statement about the p sublevel (ℓ = 1) is true?
• What is the primary action of enzymes in biochemical reactions?
• What will be the major product obtained from the acid-catalysed hydration of pent-1-ene?
• Which compound is an ester?
• In an aqueous solution, how do acids differ from bases?
• Which definition best describes an Arrhenius acid?
• The biochemical process in which the deamination of amino acids occurs is
• Hydrolysis of a polysaccharide to monosaccharides is an example of which metabolic process?
• What salt forms when ammonium hydroxide reacts with nitric acid?
• What is another name for p-aminobenzoic acid?
• In the redox reaction SnO2 + 4Cl- + 4H+ = SnCl2 + Cl2 + 2H2O, which species is reduced?
• Identify the addition reaction which is not undergone by the alkenes.
• Which of the following is an equation representing a redox reaction?
• Which statement best describes the applicability of the ideal gas equation?
• According to the priority list, which functional group comes directly after alcohols in priority?
• Which of the following molecules would one expect to have a non-polar covalent bond?
• The product of Ka and Kb for the reversible reaction
• In a Lewis dot diagram for boron, what does the three dots around the symbol indicate?
• Benzene can undergoes only reaction of?
• The term which can differentiate thermodynamics from other sciences is
• If the energy of a bonding molecular orbital is lower than the atomic orbitals from which it formed, what does that imply about bond formation?
• In Na2[Pt(CN)4], the Lewis acid is which species?
• What is Mendeleev known for?
• In alkenes, the carbon atoms are connected to each other by a what type of bond?
• The synthesis of a protein from amino acids is categorized as which type of process?
• What types of atoms form covalent bonds?