Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 13 days 100 years 0.01 minute 3 billion years 13 days 100 years 0.01 minute 3 billion years ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea water can be purified by the process of Evaporation Filtration Fractional distillation Distillation Evaporation Filtration Fractional distillation Distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one out of the following helps in burning ? Carbon monoxide Carbon dioxide Nitrogen Oxygen Carbon monoxide Carbon dioxide Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The aqueous solution of potassium chloride is Initially weak and then become a strong electrolyte A weak electrolyte A strong electrolyte A non-electrolyte Initially weak and then become a strong electrolyte A weak electrolyte A strong electrolyte A non-electrolyte ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Latin word formica means ant. The name formic acid is derived from this Latin word because ants are attracted by the odour of this acid this acid was first obtained by the distillation of ants this corrosive acid is secreted by ants to drive away their enemies this acid, in ancient times, was used to eliminate ant-hills ants are attracted by the odour of this acid this acid was first obtained by the distillation of ants this corrosive acid is secreted by ants to drive away their enemies this acid, in ancient times, was used to eliminate ant-hills ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in Absorption spectra Fluorescence Raman spectra Emission spectra Absorption spectra Fluorescence Raman spectra Emission spectra ANSWER DOWNLOAD EXAMIANS APP
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