Chemistry The main active constituent of tea and coffee is aspirin caffeine nicotine chlorophyll aspirin caffeine nicotine chlorophyll ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is x/6 7.2 x 5x 5x/36 x/6 7.2 x 5x 5x/36 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver halides are used in photographic plates because they are Reduced by light Soluble in hyposolution Oxidised in air Totally colourless Reduced by light Soluble in hyposolution Oxidised in air Totally colourless ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the maximum Water Vapour content in the atmosphere? 5 to 6 per cent 4 to 5 per cent 3 to 4 per cent 2 to 3 per cent 5 to 6 per cent 4 to 5 per cent 3 to 4 per cent 2 to 3 per cent ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the components responsible for acid rain? Nitrogen monoxide (NO) and Carbon monoxide (CO) Oxides of carbon (COx) and Oxides of nitrogen (NOx) Sulphur dioxide (SO2) and Nitrogen oxides (NOx) Carbon dioxide (CO2) and Carbon monoxide (CO) Nitrogen monoxide (NO) and Carbon monoxide (CO) Oxides of carbon (COx) and Oxides of nitrogen (NOx) Sulphur dioxide (SO2) and Nitrogen oxides (NOx) Carbon dioxide (CO2) and Carbon monoxide (CO) ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many atoms of oxygen are in a glucose molecule 6 4 3 10 6 4 3 10 ANSWER DOWNLOAD EXAMIANS APP
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