13) Which is most useful to predict the risk of NRDS? B. Squamous cell carcinoma of the larynx represents approximately 1 % of malignancies in men. These professions play a vital role in health care management. B) They have antibodies on their surfaces... HEPA filters are used to remove microbes from A. air. The nurse must teach the client how to use a walker properly. Surfactants are categorized into petrochemical and bio-based, depending on the raw material used for the synthesis. B. gain water. b- muscle glycogen. The area A occupied by a surfactant molecule at the solution–air interface can be calculated from A = 1/N A 23Γ 2 where N A is the Avogadro number (6.023 × 10 molecules D. medical instruments. Surface Tension Question and Answer. Question 1 ... What is the main result of adding surfactants into a liquid composed of two immiscible phases such as oil and water? To understand surfactants it’s first important to understand a property of all chemicals, polarity. A two hour discussion on physiology topics and their applied MCQs. Due to depleting petroleum resources and negative environmental impacts associated with their production and use, the surfactants industry is in need of bio-based surfactants. Surfactants 5. B) the H chains. SURFACE TENSION PAPER – 4: Access the above question papers link which contain MCQs (Multiple choice questions) on Surface Tension. c- is increased in fatigue. 3) What is the most important function of surfactant? SURFACE TENSION PAPER – 2: 3. July 7, 2020 huzefakifayet GATE Exam, GPAT Preparation, How to prepare for gpat, MCQ, ... Bactericidal chemicals are used along with surfactants, in which, surfactants helps these chemicals to enter into the microorganism easily and produce cidal effects. Surfactants are smart chemicals that may be completely invisible to us most of the time but which benefit our lives in many different ways. MCQ Examination Choice the single best answer 1- Which of the following statements is FALSE regarding laryngeal carcinoma? Get PDF of Power point presentation here : https://goo.gl/TRxIAl Get Entire 2 hour video here : https://goo.gl/SrQBcL. B. blocking transport into the organism. The term surfactant was originally coined by Antara Products in the 1950s a to stand for SURFace-ACTive-AgeNT, which is an attempt to explain ‘how surfactants work’. Practice more on a regular basis with these NEET Chemistry objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. 2. A. Dec 19,2020 - Test: Viscosity And Surface Tension | 20 Questions MCQ Test has questions of Class 11 preparation. Surfactants emulsifiers and dispersants have different hydrophilic-lipophilic balance (HLB) Emulsifiers for water-in-oil systems 3.0 - 6.0 Dispersants 12.0 - 17.0 c. Absorption lamellar bodies to the air-liquid. NPTEL provides E-learning through online Web and Video courses various streams. Non-polar molecules like oils have enough electrons in them to make them stable. D) the constant portions of the H and L c... Bacteria living in a freshwater stream that are moved to salty seawater would A. be in a hypotonic solution. Sources of biosurfactants: Many of the biosurfactant producing microorganisms are found to be hydrocarbon degraders (Willumsen and Karlson, 1997; Volkering et al., 1998).However in the past decades, many studies have showed the effects of microbially produced surfactants not only on bioremediation but also on enhanced oil recovery (Volkering et al., 1998; Tabatabaee et al., 2005). How surfactants will facilitate or aid wetting of hydrophobic materials in liquid (a) By decreasing the solid-liquid interfacial tension (b) By increasing the solid-liquid interfacial tension (c) Both (d) None 23. 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