Chemistry Concentration of a material which is lethal to 50% animal is called LD50 LC50 ADI NOAEL LD50 LC50 ADI NOAEL ANSWER DOWNLOAD EXAMIANS APP
Chemistry The open "Sigrees" or coal stoves often require fanning to sustain burning because of Interrupted release of moisture from the material Lack of oxygen in the surroundings of sigrees Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Interrupted release of moisture from the material Lack of oxygen in the surroundings of sigrees Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hardest form of carbon is coke graphite charcoal diamond coke graphite charcoal diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is carbon oxygen hydrogen nitrogen carbon oxygen hydrogen nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Neutrons and protons Neutrons Electrons Protons Neutrons and protons Neutrons Electrons Protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Ultraviolet rays (UV) Gamma rays X–rays Infra-red (IR) Ultraviolet rays (UV) Gamma rays X–rays Infra-red (IR) ANSWER DOWNLOAD EXAMIANS APP
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