Chemistry The most abundant element by number in the living system is : Carbon Oxygen Nitrogen Hydrogen Carbon Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is colourless ? Chlorine Sulphur Phosphorus Oxygen Chlorine Sulphur Phosphorus Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the major pollutants of cigarette smoke? Carbon monoxide and benzene Carbon monoxide and nicotine Dioxin and benzene Carbon monoxide and dioxin Carbon monoxide and benzene Carbon monoxide and nicotine Dioxin and benzene Carbon monoxide and dioxin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Methane Carbon dioxide Nitrogen Chlorofluorocarbons Methane Carbon dioxide Nitrogen Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins? Iron Aluminium Titanium Copper Iron Aluminium Titanium Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following phenomenon is considered responsible for Global Warming? Fire in coal mines Greenhouse effect Trade winds Dry farming Fire in coal mines Greenhouse effect Trade winds Dry farming ANSWER DOWNLOAD EXAMIANS APP
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