Chemistry The formula C6H5-CO-CH3 represents Acetophenone Phenyl acetate Acetone Acetic acid Acetophenone Phenyl acetate Acetone Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Philosopher’s wool is chemically Magnesium oxide Zinc oxide Aluminium oxide Calcium oxide Magnesium oxide Zinc oxide Aluminium oxide Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Oxalic acid Citric acid Lactic acid Sulphuric acid Oxalic acid Citric acid Lactic acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Carbon monoxide Carbon dioxide Smoke Sulphur dioxide Carbon monoxide Carbon dioxide Smoke Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Detergent Zinc Arsenic Phosphate Detergent Zinc Arsenic Phosphate 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