Chemistry The presence of ozone in the stratosphere is responsible for Checking the penetration of ultra-violet rays to the earth Increasing the average global temperature in recent years Higher rate of photosynthesis Supplying oxygen for people travelling in jets Checking the penetration of ultra-violet rays to the earth Increasing the average global temperature in recent years Higher rate of photosynthesis Supplying oxygen for people travelling in jets ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid present in red ants is Acetic acid Butyric acid Formic acid Caproic acid Acetic acid Butyric acid Formic acid Caproic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following the hardest metal is Tungsten Gold Iron Platinum Tungsten Gold Iron Platinum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 12 18 6 Zero 12 18 6 Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following does the Nucleus of an atom consist of? Protons Electrons Protons and neutrons Protons and electrons Protons Electrons Protons and neutrons Protons and electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Methanoic and ethanoic acids can be distinguished by the action of SOCl2 NaOH NaHCO3 Tollen's reagent SOCl2 NaOH NaHCO3 Tollen's reagent ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS