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How soap acts towards fat
Prepare another jar with warm water and oil just as you did in the experiment above. This time add about half a cup of either liquid soap or strong soap solution made by dissolving soap chips in water. Shake this mixture vigorously, permit to stand and compare with the sample from the last experiment. You should view that the soap has broken up the globules of fat and they are now distributed so that the mixture looks like milk.
Explain the Composition of Bile Bile is a complex fluid. It is yellowish green in colour and bitter in taste. It consists of: Water Mineral salts (chloride, potassium
Explain the law of diminishing return. The increase in the yield by a unit increase of the deficient factor is proportional to the decrease from maximum.
Explain Fate of the Neurotransmitter Postsynaptic membranes bind the neurotransmitters by an active process. The chemicals keep moving in and out of the membrane. The synapse t
Specific gravity of a liquid not mixing with water Pour oil into an open glass tube partially immersed in water until it forces water as far as the lower end. The relative leng
Procedure : Unscrew the plug top with the help of a screw driver. Remove one of the screws on the wire clamp and loosen the other. Cut away about 50 mm of the outer sheath of the
Q. List the methods of oil extraction? The methods of oil extraction are: (i) traditional method (ghani); (ii) improved methods, such as hydraulic pressing, screw pressing, pre
Explain the Vasomotor Centre and Cardio-Inhibitory Centre The vasomotor centre (in the medulla ablongata) excites the respiratory centre. The pulmonary ventilation is increased
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Precautionary Measures Against Ionising Radiations The following guidelines are suggested for experiments using low activity radioactive materials: (1) Avoid skin contact
How has the earth changed since it was formed? Ans) The earth has changed particularly since it was formed. Earth was a ball of rock that was strike and changed by loads of imp
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