Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Carbon di-oxide Ethane Carbon monoxide Methane Carbon di-oxide Ethane Carbon monoxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Liquid Nitrogen boils at 97 Kelvin 54 kelvin 82 Kelvin 77 kelvin 97 Kelvin 54 kelvin 82 Kelvin 77 kelvin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is distillation adding sodium carbonate adding caustic soda boiling distillation adding sodium carbonate adding caustic soda boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coloured discharge tubes for advertisement mainly contain Neon Helium Xenon Argon Neon Helium Xenon Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the lightest element in the periodic table Carbon Hydrogen Oxygen Helium Carbon Hydrogen Oxygen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Interveinal necrotic spots on leaves appear due to NO2injury O3injury HF injury SO2injury NO2injury O3injury HF injury SO2injury ANSWER DOWNLOAD EXAMIANS APP
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