Chemistry Ozone depletion in the atmosphere is mainly caused by Sulphur dioxide Chlorofluorocarbon Hydrogen sulphide Nitrogen dioxide Sulphur dioxide Chlorofluorocarbon Hydrogen sulphide Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 50 88 314 138 50 88 314 138 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is filled in ballons because Its atomic number is 2 It is lighter than air It is one of the constitutents of water It is a noble gas Its atomic number is 2 It is lighter than air It is one of the constitutents of water It is a noble gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Identify the metal which is non toxic in nature. Gold Chromium Cadmium Cobalt Gold Chromium Cadmium Cobalt ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to dilute oxygen for breathing by deep sea divers is: Neon Helium Nitrogen Argon Neon Helium Nitrogen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as a sowing agent in the preparation of soft drinks? Phosphoric acid Phosphorus acid Boric acid Salicylic acid Phosphoric acid Phosphorus acid Boric acid Salicylic acid ANSWER DOWNLOAD EXAMIANS APP
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