Chemistry The main buffer system of the human blood is H2CO3 - HCO3 CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - CO32- H2CO3 - HCO3 CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - CO32- ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Lime Potassium Permangante Sodium carbonate Alum Lime Potassium Permangante Sodium carbonate Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air shows the property of Both A and B None of these N2 O2 Both A and B None of these N2 O2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for artificial fruit ripening of green fruit is Ethylene Ethane Methane Acetylene Ethylene Ethane Methane Acetylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Ultraviolet rays (UV) X–rays Infra-red (IR) Gamma rays Ultraviolet rays (UV) X–rays Infra-red (IR) Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 200 km 300 km 150 km 100 km 200 km 300 km 150 km 100 km ANSWER DOWNLOAD EXAMIANS APP
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