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The process of separation of a racemate into its two enantiomers by means of some chiral agency.
Pharmacy Pharmacist Competitive Exams
Q. The process of separation of a racemate into its two enantiomers by means of some chiral agency.
Ans → resolution
Explanation →
This question is taken from the test/quiz post: one liner| organic| B.pharmacy| Pharmacy liners |organic chemistry| B.pharmacy file-1 - attemp/practice
More oneliners in - one liner| organic| B.pharmacy| Pharmacy liners |organic chemistry| B.pharmacy file-1
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 →
Q. When a complex is formed between a metal ion and an a ligand in solution, the equilibrium may be expressed by a constant which is related to the free energy change for the process
Ans → stability constant
Explanation →
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 →
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Q. A Characteristic of a powder rather than of individual particles given by the mass of powder occupying a known volume
Ans →
Explanation →
Q. the phenomenon in which plane polarised light is turned in a clockwise direction.
Ans → dextrorotatory
Explanation →
Q. Movement of a pathogen from one host to another population through physical contact or through droplet transmission
Ans → horizontal direct transmission
Explanation →
Q. The cofactor required for the conversion of phenylalanine to tyrosine is
Ans → Tetrahydrobiopterin
Explanation →
Q. Antihelminthic drug of the benzimidazole class that binds to helminthic β-tubulin, preventing microtubule formation
Ans → mebendazole
Explanation →
Q. Name a membrane-bound organelle (not part of the endomembrane system) that produces hydrogen peroxide to break down various types of molecules;
Ans → peroxisome
Explanation →
Q. Synthesis of 2, 3-bisphosphoglycerate occurs in the tissue namely.
Ans → Erythrocytes
Explanation →
Q. Used on tablets, granules, pellets, and capsules to make them resistant to gastric fluids but designed to disintegrate, disrupt, or dissolve when the preparation enters the duodenum.
Ans → enteric coating
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. A process in which the forward reaction can reach an equilibrium with the reverse reaction.
Ans → reversible process
Explanation →
Q. Continued substance use despite knowledge of having a persistent or recurrent psychological, or physical problem that is caused or exacerbated by use of the substance
Ans → Addiction
Explanation →
Q. Cytokines largely produced by immune system cells that help coordinate efforts against invading pathogens
Ans → interleukins
Explanation →
Q. An instrument that measures the degree of absorption (or emission) of electromagnetic radiation by a substance.
Ans → spectrophotometer
Explanation →
Q. a substance that, when added to a reaction mixture, changes (speeds up) the rate of attainment of equilibrum in the system without itself undergoing a permanent chemical change.
Ans → catalyst
Explanation →
Q. Name a technological process, which consists of mixing or inclusion of the therapeutic substance with an excipient or their mixtures, typically as a matrix dosage form, in order to change the rate of release.
Ans → embedding
Explanation →
Q. Powder particles, which have been aggregated to form larger irregular particles, usually of 0.5–2 mm diameter.
Ans → granules
Explanation →
Q. Inflammation of the conjunctiva in newborns caused by Chlamydia trachomatis transmitted during childbirth is
Ans → inclusion conjunctivitis
Explanation →
Q. Time required for the concentration of a reactant in a given reaction to reach a value that is the arith- metic mean of its initial and final (equilibrium) values.
Ans → half life
Explanation →
Q. Name the five vitamins required by pyruvate dehydrogenase or -ketoglutarate dehydrogenase complex
Ans → Thiamine, riboflavin, lipoic acid, niacin, pantothenic acid,
Explanation →
Q. Refers to a nonpolar molecule or portion of a molecule not capable of strong attraction to water molecules
Ans → hydrophobic
Explanation →
Q. When a reaction provides the agents for a subsequent reaction.
Ans → chain reaction
Explanation →
Q. Glycoprotein expressed on the surface of all nucleated cells and involved in the presentation of normal “self” antigens and foreign antigens from intracellular pathogens
Ans → MHC I molecule
Explanation →
Q. A chemical formula where electrons are represented with dots. Covalent bonds are represented with a line connecting two atoms—the line represents two electrons.
Ans → Lewis Structure
Explanation →
Q. A host in which a parasite goes through some stages of its life cycle before migrating to the definitive host
Ans → intermediate host
Explanation →