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Home ❭ Questions ❭ One Liners ❭ any of two or more hypothetical structures of resonance theory which can be written for a molecule simply by rearranging the valence electrons of the molecule.
any of two or more hypothetical structures of resonance theory which can be written for a molecule simply by rearranging the valence electrons of the molecule.
Pharmaceutical Organic Chemistry Pharmacist Competitive Exams
Q. any of two or more hypothetical structures of resonance theory which can be written for a molecule simply by rearranging the valence electrons of the molecule.
Ans → canonical structures
Explanation →
This question is taken from the test/quiz post: one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-2 - attemp/practice
More oneliners in - one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-2
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. the energy required to break a particular bond by a homolytic process.
Ans → bond energy
Explanation →
Q. any of two or more hypothetical structures of resonance theory which can be written for a molecule simply by rearranging the valence electrons of the molecule.
Ans → canonical structures
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. the energy required to break a particular bond by a homolytic process.
Ans → bond energy
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. the method for producing gasoline from heavy petroleum distillates.
Ans → catalytic cracking
Explanation →
Q. electron systems in which bonding electrons are not localised between two atoms as for a single bond but are spread (delocalized) over the whole group.
Ans → delocalization
Explanation →
Q. the process of improving the octane number of straight-run gasoline by increasing the proportion of aromatic and branched chain alkanes.
Ans → catalytic reforming
Explanation →
Q. the phenomenon in which plane polarised light is turned in a clockwise direction.
Ans → dextrorotatory
Explanation →
Q. reactions which proceed by means of a set of repeating cyclical steps, e.g. the free radical addition of hydrogen bromide to an alkene.
Ans → chain reaction
Explanation →
Q. stereoisomeric structures which are not enantiomers (mirror images) of one another.
Ans → diastereomers
Explanation →
Q. a term which may be applied to any asymmetric object or molecule. The property of non-identity of an object with its mirror image
Ans → chirality
Explanation →
Q. the angle between groups attached on adjacent carbon atoms when viewed in a Newman projection.
Ans → dihedral angle
Explanation →
More one-liners in - Pharmaceutical Organic Chemistry
Q. The time it takes for a decaying radioactive substance to be reduced by half.
Ans → half–life
Explanation →
Q. Two electrons that are not shared between atoms within a molecule.
Ans → lone pair/unshared pair
Explanation →
Q. The most commonly employed technique for separation of plasma proteins
Ans → Electrophoresis
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. The ability of electrons to "shuffle," or alternate, between bonds, making the molecule extremely stable. The best example of this is benzene.
Ans → Resonance
Explanation →
Q. The bonds in protein structure that are not broken on denaturation.
Ans → Peptide bonds
Explanation →
Q. Name the capillary bed in the nephron of the kidney that filters blood to form urine
Ans → glomerulus
Explanation →
Q. Plasma lipoprotein that is inversely correlated with coronary heart disease is
Ans → HDL
Explanation →
Q. The compound implicated in the development of cataract in diabetic patients is
Ans → Sorbitol
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. The compound that facilitates the release of O2 from oxyhemoglobin
Ans → C1– , H+ , 2, 3-BPG
Explanation →
Q. The sideways projection of a carbon-carbon single bond and the attached substituents.
Ans → sawhorse projection
Explanation →
Q. When a compound is changed into water, heat, and CO2 as a result of combining with oxygen.
Ans → combustion
Explanation →
Q. The energy needed to remove an electron from a gaseous atom.
Ans → ionization energy
Explanation →
Q. Usually small, flat, and soft tablets, which are designed to be placed under the tongue to allow direct absorption of the active ingredient through the mucosa for systemic effect.
Ans → sublingual tablets
Explanation →
Q. A simple spherical arrangement of amphipathic lipid molecules with nonpolar tails aggregated within the interior and polar heads forming the outer surface
Ans → micelle
Explanation →
Q. the process of improving the octane number of straight-run gasoline by increasing the proportion of aromatic and branched chain alkanes.
Ans → catalytic reforming
Explanation →
Q. The regulatory enzyme in the pyrimidine biosynthesis in animals is
Ans → Carbamoyl phosphate synthetase II
Explanation →
Q. Name the process producing a mixture of lactic acid, ethanol and/or acetic acid, and CO2 as fermentation products
Ans → heterolactic fermentation
Explanation →
Q. The process by which proteins lose their 3-D (tertiary and secondary) structure by application of an external stress, most often heat.
Ans → Denatured
Explanation →
Q. Time required to achieve the minimum effective plasma concentration following administration of the dosage form.
Ans → onset of drug action
Explanation →
Q. Science of preparation of drugs, dosage forms, and drug delivery systems taking into account the pharmacokinetics and pharmacodynamics of the drug as well as its physical and chemical properties.
Ans → pharmaceutics
Explanation →
Q. Name the cell envelope structure outside the cell wall in some bacteria that allows bacteria to adhere to surfaces,
Ans → glycocalyx
Explanation →
Q. The determination of the potency of a physical, chemical or biological agent, by means of a biological indicator
Ans → Biological Assay
Explanation →
Q. The most important enzyme involved in oxidative deamination is
Ans → Glutamate dehydrogenase
Explanation →
Q. A known volumes are vacuum filtered aseptically through a membrane with a pore size small enough to trap microorganisms, which are counted after growth on plates
Ans → membrane filtration technique
Explanation →
Q. Name the compound with the greatest standard free energy.
Ans → Phosphoenolpyruvate
Explanation →