Chemistry Zone refining is used for the purification of Cu Ge Ag Au Cu Ge Ag Au ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry The heat energy produced when the human body metabolises 1 gram of fat is 1 KJ 29 KJ 39 KJ 30 KJ 1 KJ 29 KJ 39 KJ 30 KJ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which variety of coal contains recognisable traces of the original plant material ? Lignite Bitumen Peat Anthracite Lignite Bitumen Peat Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Methane Nitrogen dioxide Sulphur dioxide Carbon monoxide Methane Nitrogen dioxide Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most extensive, commercially useful source of thorium as monazite sand occurs in India at West Bengal coast Travancore coast Gujarat coast Orissa coast West Bengal coast Travancore coast Gujarat coast Orissa coast ANSWER DOWNLOAD EXAMIANS APP
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