Chemistry The BOD values of water indicate the Amount of organic debris Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of oxygen used for biochemical oxidation Amount of organic debris Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of oxygen used for biochemical oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal is extracted from sea water? Magnesium Potassium Aluminium Beryllium Magnesium Potassium Aluminium Beryllium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 0.01 minute 100 years 13 days 3 billion years 0.01 minute 100 years 13 days 3 billion years ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alloy is used in making magnet ? Alnico Magnalium Duralumin Stainless steel Alnico Magnalium Duralumin Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highly toxic gas which causes headache, visual difficulty, paralysis and even death is CO O3 All of these CO2 CO O3 All of these CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in the manufacture of lead pencil is Carbon Mica Lead Graphite Carbon Mica Lead Graphite ANSWER DOWNLOAD EXAMIANS APP