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If an electron passes from one orbital to another an electronic transition occurs and there is the emission or absorption of energy corresponding to the difference in energy of the two orbitals known as
Pharmaceutical Organic Chemistry Pharmacist Competitive Exams
Q. If an electron passes from one orbital to another an electronic transition occurs and there is the emission or absorption of energy corresponding to the difference in energy of the two orbitals known as
Ans → electronic transition
Explanation →
This question is taken from the test/quiz post: one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-3 - attemp/practice
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Q. A process in which a compound of one oxidation state changes to compounds two or more oxidation states
Ans → disproportionation
Explanation →
Q. The process whereby a molecule is split into simpler fragments which may be smaller molecules, atoms, free radicals or ions.
Ans → dissociation
Explanation →
Q. Some atoms can share two pairs of electrons to form a double bond (two covalent bonds).
Ans → double bond
Explanation →
Q. Intensely coloured compounds applied to a substrate. Colours are due to the absorption of light to give electronic transitions.
Ans → dyestuffs
Explanation →
Q. A conformation in which substituents on two attached saturated carbon atoms overlap when viewed as a Newman projection.
Ans → eclipsed
Explanation →
Q. The particular order in which electrons are arranged in an atom or molecule.
Ans → electronic configuration
Explanation →
Q. If an electron passes from one orbital to another an electronic transition occurs and there is the emission or absorption of energy corresponding to the difference in energy of the two orbitals known as
Ans → electronic transition
Explanation →
Q. An overall reaction in which an electrophile binds to a substrate with the expulsion of another electrophile is known as
Ans → electrophilic substitution
Explanation →
Q. A a substance which cannot be further subdivided by chemical methods.
Ans → element
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Q. A a pair of isomers which are related as mirror images of one another.
Ans → enantiomers
Explanation →
Q. A graph of the energy of a reaction against the progress of the reaction.
Ans → energy diagram
Explanation →
Q. A thermodynamic quantity which is a measure of the degree of disorder within any system.
Ans → entropy
Explanation →
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Q. A term applied an object or molecule that does not possess symmetry.
Ans → asymmetry
Explanation →
Q. The sideways projection of a carbon-carbon single bond and the attached substituents.
Ans → sawhorse projection
Explanation →
Q. The disease characterized by impairment in the absorption of neutral amino acids
Ans → Hartnup’s disease
Explanation →
Q. Sweet (often colored) dilute alcohol-based, “hydroalcoholic”, liquid used in the compounding of drugs to be taken by mouth in order to improve palatability.
Ans → elixir
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. Technological process consisting of the application of a substance, which forms a layer e.g, to protect the drug
Ans → coating
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. Name the process producing only lactic acid as a fermentation product
Ans → homolactic 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. An antibacterial and antiprotozoan drug of the nitroimidazole class that is activated in anaerobic target cell and introduces DNA strand breakage, thus interfering with DNA replication in target cells
Ans → metronidazole
Explanation →
Q. Type of comparative bioavailability study designed in such a way as to take into account differences in bioavailability arising from differences between patients suffering from disease
Ans → crossover study
Explanation →
Q. Some atoms can share two pairs of electrons to form a double bond (two covalent bonds).
Ans → double bond
Explanation →
Q. When a compound is changed into water, heat, and CO2 as a result of combining with oxygen.
Ans → combustion
Explanation →
Q. Chemically modified form of a pharmacologically active compound that has to undergo biochemical or chemical transformation before exhibiting its pharmacological effect.
Ans → prodrug
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Q. When a compound is changed into water, heat, and CO2 as a result of combining with oxygen.
Ans → combustion
Explanation →
Q. A solution property that changes if the concentration of that solution changes.
Ans → colligative property
Explanation →
Q. Two electrons that are not shared between atoms within a molecule.
Ans → lone pair/unshared pair
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. Name a toxin that affects cell membrane function by either forming pores or disrupting the phospholipid bilayer
Ans → membrane-disrupting toxin
Explanation →
Q. The number of ATP produced when a molecule of acetyl CoA is oxidized through citric acid cycle
Ans → 12
Explanation →
Q. Inflammation of the conjunctiva in newborns caused by Neisseria gonorrhoeae transmitted during childbirth
Ans → ophthalmia neonatorum
Explanation →
Q. If two monosaccharides differ in configuration around a single carbon atom, they are known as
Ans → Epimers
Explanation →
Q. The ‘burning feet syndrome’ in man is associated with the deficiency of
Ans → Pantothenic acid
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. The vitamin that is regarded as a vitamin in search of a disease
Ans → Vitamin E (tocopherol)
Explanation →
Q. A a term applied to an atom or molecule having one or more free valencies.
Ans → radical
Explanation →
Q. Having numerous flagella covering the entire surface of a bacterial cell is known as
Ans → peritrichous
Explanation →
Q. When parts of the nucleus of atoms are forced together to create a new one.
Ans → nuclear fusion
Explanation →
Q. An animal that transfers a pathogen from one host to another or from a reservoir to a host without being infected by the pathogen itself
Ans → mechanical vector
Explanation →