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A a term applied to an atom or molecule having one or more free valencies.
Pharmaceutical Organic Chemistry Pharmacist Competitive Exams
Q. A a term applied to an atom or molecule having one or more free valencies.
Ans → radical
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
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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. The amino acid that is completely destroyed by acid hydrolysis of protein
Ans → Tryptophan
Explanation →
Q. A Characteristic of a powder rather than of individual particles given by the mass of powder occupying a known volume
Ans →
Explanation →
Q. Process that occurs when the vapor pressure of the saturated aqueous solution of a substance is less than the vapor pressure of water in the ambient air.
Ans → deliquescence
Explanation →
Q. The process of separating the lighter particles of a powder from the heavier ones by means of an upward-directed stream of fluid
Ans → elutriation
Explanation →
Q. The space between the cell wall and the plasma membrane, primarily in gram-negative bacteria
Ans → periplasmic space
Explanation →
Q. The stage of replication during which various proteins bind to the origin of replication to begin the replication process
Ans → initiation of DNA replication
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 compound possessing hydrophobic and hydrophilic groups in its structure is known as
Ans → Ampipathic
Explanation →
Q. Refers to a nonpolar molecule or portion of a molecule not capable of strong attraction to water molecules
Ans → hydrophobic
Explanation →
Q. Type of mutation involving the addition of one or more bases into a DNA sequence
Ans → insertion
Explanation →
Q. Name the type of symbiosis in which one population benefits while harming the other parasitology the study of parasites
Ans → parasitism
Explanation →
Q. A three-dimensional structure of folded fully functional proteins
Ans → native structure
Explanation →
Q. When a reaction provides the agents for a subsequent reaction.
Ans → chain reaction
Explanation →
Q. The two final products in the -oxidation of odd chain fatty acids are
Ans → Acetyl CoA and propionyl CoA
Explanation →
Q. Greasy, semi-solid preparation for external application, often anhydrous, containing dissolved or dispersed medicaments.
Ans → ointment
Explanation →
Q. Some atoms can share two pairs of electrons to form a double bond (two covalent bonds).
Ans → double bond
Explanation →
Q. Cytokines largely produced by immune system cells that help coordinate efforts against invading pathogens
Ans → interleukins
Explanation →
Q. An activated and differentiated B cell that is programmed to respond to secondary exposures to a specific antigen
Ans → memory B cell
Explanation →
Q. The amount of a specific radioactive material it takes to create a chain reaction.
Ans → critical mass
Explanation →
Q. An instrument that measures the degree of absorption (or emission) of electromagnetic radiation by a substance.
Ans → spectrophotometer
Explanation →
Q. Name the organism that grows in the presence of high salt concentration but does not require it
Ans → halotolerant
Explanation →
Q. the method for producing gasoline from heavy petroleum distillates.
Ans → catalytic cracking
Explanation →
Q. a solution of definite pH made up in such a way that the pH alters only gradually with the addition of an acid or a base.
Ans → buffer solution
Explanation →
Q. Process of enclosing a drug in a (micro or nano) particle (capsule, liposome, polymer).
Ans → encapsulation
Explanation →
Q. The glycosidic bonds at the branching points in the structure of starch are
Ans → 1,6- glycosidic bond
Explanation →
Q. Emulsions in which the dispersed droplets are in the micron-size range.
Ans → microemulsions
Explanation →
Q. Name the term that refers to a polar molecule or portion of a molecule capable of strong attraction to water molecules
Ans → hydrophilic
Explanation →
Q. When particles move to a lower area of concentration from a high area of concentration.
Ans → diffusion
Explanation →
Q. Name term that describes a solid of regular shape and the presence of three-dimensional order on the level of atomic dimensions, for a given molecule.
Ans → crystalline
Explanation →
Q. When a compound is changed into water, heat, and CO2 as a result of combining with oxygen.
Ans → combustion
Explanation →
Q. Procedure for estimating the concentration or biological activity of a substance by measuring its effect on a living system compared to a standard system
Ans → bioassay
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. Powder formulation in which individual doses of a powdered dosage form are separately wrapped
Ans → divided powder
Explanation →
Q. Name the enzyme associated with hyperuricemia
Ans → PRPP synthetase, HGPRT , Glucose 6-phosphatase
Explanation →