Chemistry The chief source of naphthalene is Diesel Coal-tar Charcoal Camphor Diesel Coal-tar Charcoal Camphor ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a naturally occuring noble gas Potassium Sodium Boron Argon Potassium Sodium Boron Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The structure of (HPO3)3 is Octahedral Linear Cyclic Tetrahedral Octahedral Linear Cyclic Tetrahedral ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following type of coal has the lowest proportion of volatile matter ? Peat Lignite Anthracite Bituminous Peat Lignite Anthracite Bituminous ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in solar cells contains Tin Silicon Thallium Caesium Tin Silicon Thallium Caesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is not a pollutant ? Mercury Lead Aluminium Arsenic Mercury Lead Aluminium Arsenic ANSWER DOWNLOAD EXAMIANS APP