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q. why is sodium aluminates is a better coagulates then ferrous sulphates or alum?ans. sodium aluminates naalo2 it is better coagulant than feso4
electrons and nuclei the familiar planetary model of the atom was proposed by rutherford in 1912 following experiments by geiger and marsden
q. name of the reagent required for determination of hardness of water sample of complex metric method. briefly give the function of each reagent
purification of raw water for domestic use involve following process1 screening the raw water is passed through
q. what are the characteristics of drinking water? sol. characteristics of drinking water1 it should be
q. a sample of water on analysis was found to contain the following analytical datamg hco33 16.8mgl mgcl2 19mglmg no32 29.6 ppm caco3 20 ppmmgso4
q. describe the ion exchange process of softening hard water. what are its advantages? ans.determination of ion exchange or deionization
q. a sample of water analysis was found to contain temporary magnesium hardness 25 mgl. permanent magnesium chloride hardness 15 mgl and permanent
q. write phosphate conditioning method for water softening with suitable chemical reactions. how it is different from soda lime
q. what do you understand by dissolved oxygen in water? how does it create trouble in boiler? give chemical methods with suitable reactions to remove
q. write short notes on priming and foaming.ans. priming and foaming when a boiler produces steam rapidly some particles of the liquid water are
q. write short note on units of hardness and their relationship.sol. units of hardness and their relationship.1
q. what are the requirements of drinking water? explain various methods used for the sterilization of water for municipal supply.ans. requirements
break point chlorination it may be defined as the chlorination of water to such an extent that not only living organism but also other organic
sedimentation the process of allowing water to stand undisturbed in big tanks for some time in order to facilitate the settling down of the course
clarks method or soap titration method this method depends upon the fact that when soluble soap is added to hard water constituent of hard water. ca
degree of hardness the degree of hardness of water is conveniently expressed in terms of equivalent amount of caco3. although hardness of water is
q. discuss the edta method of determining hardness of
a what is hardness of water? what do you understand by temporary and permanent
enthalpy h is defined by the relationship hupv. the enthalpy change deltah for finite changes at constant pressure is given by the expression deltah
thermodynamicsthermodynamics is a macroscopic science and its most fundamental level is the study of two physical energy entropy and quantities.
structure of liquidsliquids have a limited degree of short-range order and are most adequately described in terms of a radial distribution function.
the sum of the sides of a triangle is 9 29 inches.if the two sides measure 53 inches and 3 16 inchesfind the measure of the third
a business has the opportunity to expand by purchasing a machine at a cost of 16380000. the machine has an estimated life of 5 years and is
maximize p3x2y subject to xy 6 x 3 x 0y