Chemistry The element with highest first ionisation energy is Lithium Helium Sodium Hydrogen Lithium Helium Sodium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Methane Ethane Butane Propane Methane Ethane Butane Propane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hottest part of the gas flame is known as luminous zone dark zone non-luminous zone blue zone luminous zone dark zone non-luminous zone blue zone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the highest electronegativity value Fluorine Chlorine Lithium Nitrogen Fluorine Chlorine Lithium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in the manufacture of lead pencil is Lead Carbon Graphite Mica Lead Carbon Graphite Mica ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Gamma rays Ultraviolet rays (UV) X–rays Infra-red (IR) Gamma rays Ultraviolet rays (UV) X–rays Infra-red (IR) ANSWER DOWNLOAD EXAMIANS APP
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