Chemistry The biogas used for cooking is a mixture of which of the following? Carbon dioxide and oxygen Methane and carbon dioxide Isobutane and propane Methane and carbon monoxide Carbon dioxide and oxygen Methane and carbon dioxide Isobutane and propane Methane and carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The drug ‘Marijuana’ is a Hallucinating substance Mental stimulant Sedative Tranquillizer Hallucinating substance Mental stimulant Sedative Tranquillizer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Supplying oxygen for people travelling in jets Higher rate of photosynthesis Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth ANSWER DOWNLOAD EXAMIANS APP
Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is nitrogen oxygen carbon hydrogen nitrogen oxygen carbon hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Nitrous oxide Hydrocarbons Carbon dioxide Sulphur dioxide Nitrous oxide Hydrocarbons Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry ice is the solid form of : Air Carbon di–oxide Water Nitrogen Air Carbon di–oxide Water Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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