Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
q. how is true exhausted zeolite bed regenerated? give the merits and demerits of zeolite process.
q. describe lime-soda method for softening of hard water. discuss the advantages of the process and the chemistry involved in
q. what are boiler troubles? discuss their consequences?sol. boiler feed water water for steam making water is very important engineering material
q. what is softening of water? describe deionization method of water softening with diagram.ans. softening of water the process of removing the
symmetry is a property of molecules having more than one atom of the same kind with equal bond lengths andor bond angles. as like the high symmetry
a single covalent bond is build when two atoms share a pair of electrons. triple and double bonds can be formed when two or three such pairs are
it is important to differentiate the stoichiometric or empirical formula of a molecular substance from its molecular formula. the former expresses
the most important classification of elements is that of non-metallic versus metallic. metallic elements form solids that are good conductors of
q. write short notes on fabrication of rubber objects.sol. fabrication of rubber in the row condition rubber is composed of molecules of great length
types of polymerization sol. types of polymerization polymerization is a process in which the joining together of many small molecules to form
q. write short note on electrically conducting polymers.ans. electrically conducting polymers many synthetic organic polymers have been found to
q. explain vulcanization of rubber is necessary.ans. importance of vulcanization of
short note on synthetic rubber.sol. synthetic rubber main types of synthetic
polyethylene polyethylene are formed by polymerization of ethylene under high pressure and at moderately high temperature. the resulting polymers are
electron configurations are governed by a limitation called as the pauli exclusion principle no two electrons can have the same value for all
terylenepreparation terylene is prepared by a polyconensation reaction between a dicarboxylic acid and a idol.properties a fully aliphatic
neoprene gr or polychloroprene or dupepreparation neoprene is prepared by the free radical polymerisation of chloroprene in an emulsion system.
nitrite rubbers gr-a or buna-n or nbr nitrite rubber is prepared by the copolymerization of butadiene and acrylonitrile in emulsion
styrene rubber gr-s or buna-s or sbr or ameripol styrene butadiene rubber sbr is prepared by the copolymerization of butadiene 75 and styrene 25 in
bakelite it is thermosetting plastics which are most widely used and the most important plastics.preparation it is formed by condensation reaction of
q. differentiate the thermoplastic and thermo sets. orwrite
q. discuss the classification of polymers. orhow are polymers classified?
addition polymerization it involves following three mechanisms1. free radical
vulcanization vulcanization is very widely used in rubber technology to improve the properties such as low tensile strength plastic nature thickness
natural rubber natural rubber is obtained by making small incisions on the bark of certain types of trees like have a brasiliensis and ganynle. white