Chemistry Which one of the following elements is an example of noble gas ? Chlorine Nitrogen Hydrogen Helium Chlorine Nitrogen Hydrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 20 and 50 km 5 and 10 km 10 and 20 km 50 and 100 km 20 and 50 km 5 and 10 km 10 and 20 km 50 and 100 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry Formic acid is produced by Red ants Cockroaches White ants Mosquitoes Red ants Cockroaches White ants Mosquitoes ANSWER DOWNLOAD EXAMIANS APP
Chemistry A matured mammalian cell without nucleus is Erythrocyte Spermatozoan Lymphocyte Oocyte Erythrocyte Spermatozoan Lymphocyte Oocyte ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis ANSWER DOWNLOAD EXAMIANS APP
Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is Oxygen Carbon dioxide All of them Hydrogen Oxygen Carbon dioxide All of them Hydrogen ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS