Chemistry The first metal used by man was copper bronze iron gold copper bronze iron gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements in the modern Periodic table are arranged according to their Mass number Atomic Weight Neutron number Atomic number Mass number Atomic Weight Neutron number Atomic number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is formed by strongly heating a mixture of Limestone and graphite Limestone and clay Chalk and graphite Clay and graphite Limestone and graphite Limestone and clay Chalk and graphite Clay and graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Nitrogen Carbondioxide Oxygen Ozone Nitrogen Carbondioxide Oxygen Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a lead storage battery is discharged, Lead sulphate is consumed SO2 is evolved Sulphuric acid is consumed Lead is formed Lead sulphate is consumed SO2 is evolved Sulphuric acid is consumed Lead is formed ANSWER DOWNLOAD EXAMIANS APP
Chemistry The National Chemical Laboratory is situated in Pune Patna New Delhi Bangalore Pune Patna New Delhi Bangalore ANSWER DOWNLOAD EXAMIANS APP
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