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A formal non-ambiguous, nomenclature system for the assignment of absolute configuration of structure to chiral atoms, using the Cahn, Ingold and Prelog priority rules.
Pharmaceutical Organic Chemistry Pharmacist Competitive Exams
Q. A formal non-ambiguous, nomenclature system for the assignment of absolute configuration of structure to chiral atoms, using the Cahn, Ingold and Prelog priority rules.
Ans → R,S convention
Explanation →
This question is taken from the test/quiz post: one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-6 - attemp/practice
More oneliners in - one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-6
Q. An instrument used to measure the amount of rotation of plane polarized light by a compound, generally prepared in a solution
Ans → polarimeter
Explanation →
Q. A group that is used to protect a functional group from unwanted reactions. After application the protecting group can be removed to reveal the original functional group.
Ans → protecting group
Explanation →
Q. An equimolar mixture of the two enantiomeric isomers of a compound.
Ans → racemic mixture
Explanation →
Q. A a term applied to an atom or molecule having one or more free valencies.
Ans → radical
Explanation →
Q. A chemical processes in which the proportion of more electronegative substituents is decreased, or the charge is made more negative, or the oxidation number is lowered.
Ans → reduction
Explanation →
Q. The process of separation of a racemate into its two enantiomers by means of some chiral agency.
Ans → resolution
Explanation →
Q. The representation of a compound by two or more canonical structures in which the valence electrons are rearranged to give structures of similar probability.
Ans → resonance
Explanation →
Q. A process in which the forward reaction can reach an equilibrium with the reverse reaction.
Ans → reversible process
Explanation →
Q. A formal non-ambiguous, nomenclature system for the assignment of absolute configuration of structure to chiral atoms, using the Cahn, Ingold and Prelog priority rules.
Ans → R,S convention
Explanation →
Q. The term given to organic molecules which contain no multiple bonds.
Ans → saturated
Explanation →
Q. The sideways projection of a carbon-carbon single bond and the attached substituents.
Ans → sawhorse projection
Explanation →
Q. An instrument that measures the degree of absorption (or emission) of electromagnetic radiation by a substance.
Ans → spectrophotometer
Explanation →
More one-liners in - Pharmaceutical Organic Chemistry
Q. Name the most serious stage of pertussis (whooping cough), characterized by severe and prolonged coughing spells
Ans → paroxysmal stage
Explanation →
Q. Part of the orbital area in an atom where it is impossible to find an electron.
Ans → node
Explanation →
Q. Test in which antigen and antisera are added to neighboring wells in an agar gel, allowing visualization of precipitin arcs
Ans → Ouchterlony assay
Explanation →
Q. The relation between the change of free energy (G), enthalpy (H) and entropy (S) is expressed by the equation
Ans → ΔG = ΔH – TΔS (T = Absolute temperature)
Explanation →
Q. Organic substances occurring naturally, which are basic, forming salts with acids. The basic group is usually an amino function.
Ans → alkaloid
Explanation →
Q. The high level of energy electrons can achieve as energy is added.
Ans → excited state
Explanation →
Q. Greasy, semi-solid preparation for external application, often anhydrous, containing dissolved or dispersed medicaments.
Ans → ointment
Explanation →
Q. A ring structure formed from complement proteins C6 through C9 that penetrates the membranes of a targeted cell, causing cell lysis and death
Ans → membrane attack complex (MAC)
Explanation →
Q. The space between the cell wall and the plasma membrane, primarily in gram-negative bacteria
Ans → periplasmic space
Explanation →
Q. The nitrogen atoms in the purine ring are obtained from
Ans → Glycine , Glutamine , Aspartate
Explanation →
Q. Fourth stage of disease, during which the number of pathogens present in the host decreases, along with signs and symptoms of disease
Ans → period of decline
Explanation →
Q. N-Acetylglutamate is required for the activation of the enzyme
Ans → Carbamoyl phosphate synthase I
Explanation →
Q. A group that is used to protect a functional group from unwanted reactions. After application the protecting group can be removed to reveal the original functional group.
Ans → protecting group
Explanation →
Q. A herpes infection of the newborn, generally caused by infection during birth
Ans → neonatal herpes
Explanation →
Q. a chemical reaction in which two species (e.g. molecules, ions or radicals) react together to form new chemical species.
Ans → bimolecular reaction
Explanation →
Q. Number that expresses the reduction in the numbers of a microorganism, brought about by a sterilizaion process.
Ans → inactivation factor (IF)
Explanation →
Q. Close, tight aggregation of colloid particles, emulsion droplets, suspension particles, which are difficult to redisperse.
Ans → coagulation
Explanation →
Q. the phenomenon in which plane polarised light is turned in a clockwise direction.
Ans → dextrorotatory
Explanation →
Q. On a light microscope, the lenses closest to the specimen, typically located at the ends of turrets is called as
Ans → objective lenses
Explanation →
Q. Molecules that exist only during a chemical reaction; not before or after the reaction.
Ans → intermediate
Explanation →
Q. A partial agonist is an agonist that produces a maximal response that is less than the maximal response produced by another agonist acting at the same receptors on the same tissue.
Ans → Partial Agonist
Explanation →
Q. the energy required to break a particular bond by a homolytic process.
Ans → bond energy
Explanation →
Q. Substrate level phosphorylation in citric acid cycle is catalysed by the enzyme
Ans → Succinate thiokinase
Explanation →
Q. A technique that uses a fluorescence microscope and antibody-specific fluorochromes to determine the presence of specific pathogens in a specimen
Ans → immunofluorescence
Explanation →
Q. Name the study that compares entire genomes, including the complete set of genes, their nucleotide sequence and organization
Ans → Genomics
Explanation →
Q. The inorganic element found in the structure of majority of high-energy compounds
Ans → Phosphorus
Explanation →
Q. The chemical reaction that removes electrons (often as part of H atoms) from donor molecules, leaving them oxidized
Ans → oxidation reaction
Explanation →