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Q. Cleaning efficiency of Detergents and Soaps?
Soaps and detergents emulsify fats, oils and grease so that they are easily washed away. They usually contain chemical builders to enhance their cleaning efficiency. Soap is an oldest and best cleaning compound used but it forms an insoluble curd with hard water, hence not preferred. Instead, detergents are used.
A detergent is a substance which assists in cleaning when added to water. These are normally sodium salts of fatty acids. To be effective, a detergent must have a good wetting capacity and the ability to remove soil from surfaces and carry away residues. Soaps and detergents for household cleaning have a pH of 8.0 to 9.5.
How much SDS do you need for 50 ml of a 20% SDS solution in water(weight/ volume)? SDS is a solid.
Q. What is selective waste collection? The Recyclable waste is waste that can be reprocessed and used again. The waste recycling depends on the separation of the recyclable res
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VENOU S SYSTEM It is collecting system formed by the uniting branches as smaller and then larger veins and venacava leading to the heart. Blood from anterior part of the
Subphylum Vertebrata : (41,700 species, the vertebrates) Vertebral column of bone or cartilage, head is well developed, heart is ventrally situated dorsal aorta, two pairs of
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Explain how a human eye is working for the body. Every tissue in the body requires basic components which are either derived from the body itself or we acquire them from extern
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What are the pancreatic tissues involved respectively in the exocrine and endocrine secretions? What are their respective hormones and enzymes? The exocrine secretion of the pa
Colonial Theory - Metazoa This is the most popular theory on the origin of Metazoa. The idea was conceived by Haeckel (1874) modified by Metschnikoff (1886) and revived by Hy
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