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Compunds which change colors at different pH levels.
Pharmaceutical Organic Chemistry Pharmacist Competitive Exams
Q. Compunds which change colors at different pH levels.
Ans → indicators
Explanation →
This question is taken from the test/quiz post: one liner| organic| B.pharmacy| Pharmacy one liners |organic chemistry| B.pharmacy file-10 - attemp/practice
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Q. The high level of energy electrons can achieve as energy is added.
Ans → excited state
Explanation →
Q. The time it takes for a decaying radioactive substance to be reduced by half.
Ans → half–life
Explanation →
Q. The process wherein orbitals of similar energies are combined to form a set of equivalent ‘hybrid’ orbital.
Ans → hybridization
Explanation →
Q. A chemical reaction where water is introduced in another substance usually to separate it.
Ans → hydrolysis
Explanation →
Q. Molecules that exist only during a chemical reaction; not before or after the reaction.
Ans → intermediate
Explanation →
Q. The energy needed to remove an electron from a gaseous atom.
Ans → ionization energy
Explanation →
Q. A chemical reaction after which the resulting agents cannot be changed back into the reactions ingredients.
Ans → irreversible reaction
Explanation →
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Q. The regulatory enzyme in the pyrimidine biosynthesis in animals is
Ans → Carbamoyl phosphate synthetase II
Explanation →
Q. The network of neurons that connects the CNS with organs, sensory organs, and muscles throughout the body
Ans → peripheral nervous system
Explanation →
Q. Name the compound that is increased in RBC of anemic patients to facilitate the supply of O2 to the tissues
Ans → 2,3-Bisphosphoglycerate
Explanation →
Q. Region of the respiratory tract containing the vocal cords; also referred to as the voice box
Ans → larynx
Explanation →
Q. Condition of being aseptic, or statistically free from living microorganisms and their spores.
Ans → sterility
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. The disorder in which the patients have an irresistible urge to bite their fingers and lips is
Ans → Lesch-Nyhan syndrome
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. When a mix of liquids is separated by heating it up because one liquid boils at a different temperature than the other.
Ans → distillation
Explanation →
Q. Which enzymes in glycolysis catalyses an irreversible reaction
Ans → Pyruvate kinase , Phosphofructokinase, Hexokinase
Explanation →
Q. An individual capable of transmitting a pathogen to another individual without becoming infected
Ans → passive carrier
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 angle between groups attached on adjacent carbon atoms when viewed in a Newman projection.
Ans → dihedral angle
Explanation →
Q. The granulocytes similar in origin and function to basophils, but residing in tissues
Ans → mast cells
Explanation →
Q. A conformation in which substituents on two attached saturated carbon atoms overlap when viewed as a Newman projection.
Ans → eclipsed
Explanation →
Q. Name the enzyme produced by pathogens that degrades hyaluronic acid between adjacent cells in connective tissue
Ans → hyaluronidase
Explanation →
Q. The migration of a double bond in a 3-carbon system from carbon atoms one and two to carbon atoms two and three
Ans → allylic rearrangement
Explanation →
Q. An agent able to produce positively charged hydrogen ions (H+). [Since the hydrogen ion is a bare proton, it usually exists in a solvated form (such as H3O+).]
Ans → acid
Explanation →
Q. Properties of a substance that can be observed without using a chemical reaction that would change the substance.
Ans → physical property
Explanation →
Q. The energy needed to remove an electron from a gaseous atom.
Ans → ionization energy
Explanation →
Q. Name a differential staining technique that distinguishes bacteria based upon their cell wall structure
Ans → Gram stain procedure
Explanation →
Q. Name a dormant cell that survives in the death phase and is resistant to most antibiotics
Ans → persister
Explanation →
Q. A thermodynamic quantity which is a measure of the degree of disorder within any system.
Ans → entropy
Explanation →
Q. Solid material that exists at least in two different molecular arrangements, i.e., distinctly different crystal species.
Ans → polymorph
Explanation →
Q. Name the formula that shows the number and kinds of atoms in a molecule.
Ans → Molecular Formula
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. Name the type of symbiosis in which one population benefits while harming the other parasitology the study of parasites
Ans → parasitism
Explanation →
Q. Name the antibody dimer primarily found in breast milk, mucus, saliva, and tears
Ans → IgA
Explanation →
Q. Two electrons that are not shared between atoms within a molecule.
Ans → lone pair/unshared pair
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. A thermodynamic quantity which is a measure of the degree of disorder within any system.
Ans → entropy
Explanation →
Q. Antihelminthic drug of the benzimidazole class that binds to helminthic β-tubulin, preventing microtubule formation
Ans → mebendazole
Explanation →