Chemistry The open "Sigrees" or coal stoves often require fanning to sustain burning because of Interrupted release of moisture from the material Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Lack of oxygen in the surroundings of sigrees Interrupted release of moisture from the material Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Lack of oxygen in the surroundings of sigrees ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Eutrophication Smog Green house effect None of these Eutrophication Smog Green house effect None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The octane number of zero is assigned to iso-octane 3-methyl octane n-heptane 2-methyl octane iso-octane 3-methyl octane n-heptane 2-methyl octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide level in the atmosphere can be reduced by using Static electricity to attract it in factory chimneys More efficient car engines Low - sulphur fuels Catalytic converters in industry Static electricity to attract it in factory chimneys More efficient car engines Low - sulphur fuels Catalytic converters in industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Steel Cast iron Pig iron Wrought iron Steel Cast iron Pig iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Lead peroxide and lead Iron and cadmium Zinc and carbon Nickel and cadmium Lead peroxide and lead Iron and cadmium Zinc and carbon Nickel and cadmium ANSWER DOWNLOAD EXAMIANS APP