Category: GATE Exam

COPD, Classification of COPD, Pharmacodynamics, Pharmacokinetics, Side effects and Medicinal Uses, MCQs for GPAT, NIPER, DRUG INSPECTOR, PHARMACIST EXAMS.

COPD: Chronic obstructive pulmonary disease, a group of lung disease that blocks airflow and make it difficult to breathe. Types of COPD: There are two main types of COPD. Chronic bronchitis: Which involves a long term cough with mucus. Emphysema: […]

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Surface and interfacial phenomenon: Solubilization and detergency and MCQs for GPAT, NIPER, Pharmacist and Drug Inspector exam

SOLUBILIZATION: It can be defined as the preparation of a thermodynamically stable isotropic solution of a substance normally insoluble or very slightly soluble in a given solvent by the addition of component or by any suitable methods. SOLUBILITY: The maximum […]

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Surfactants, Surface active agents and Question Answer for GPAT, NIPER, Pharmacist and Drug Inspector exam

SURFACE-ACTIVE AGENTS (SURFACTANTS): Substances having both hydrophilic and hydrophobic regions in their molecular structures are called surfactants or surface-active agents. When surfactants are added to the air/ liquid (water) interface, they accumulate at the interface, a process that is generally […]

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Physical and chemical adsorption, Adsorption Isotherm, Adsorption phenomenon(Part1) and MCQs for GPAT, NIPER, Pharmacist and Drug Inspector exam

ADSORPTION PHENOMENA: Adsorption is the process in which materials of one phase (adsorbate) accumulate or concentrate at the interfacial surface of the other phase (adsorbent). It is a spontaneous phenomenon driven by a reduction of the surface free energy. Adsorption […]

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Drop weight and drop count method and Spinning Drop Method and MCQs for GPAT, NIPER, Pharmacist and Drug Inspector exam

Drop Weight and Drop Count Method: Principle: If a liquid is allowed to fall slowly through a capillary tube, the liquid first forms a drop at the tip of the capillary tube, which gradually increases in size and finally detaches […]

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Micromeretics and powder rheology: Methods of determining particle size and volume – Sedimentation and Coulter Counter method and MCQs for GPAT, NIPER, Pharmacist and Drug Inspector exam

Sedimentation Technique: Equivalent diameter: Stokes’ diameter; frictional drag diameter—a sphere having an equivalent drag force to a particle of the same diameter in the same fluid at the same velocity. Range of analysis: 1 μm to about 200 μm. It […]

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