Chemistry The method that cannot be used for removing permanent hardness of water is distillation adding caustic soda adding sodium carbonate boiling distillation adding caustic soda adding sodium carbonate boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electropositive elements among the following is Ca K Cs Na Ca K Cs Na ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Chlorofluorocarbon Nitrous oxide Carbon dioxide Sulphur dioxide Chlorofluorocarbon Nitrous oxide Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry An alloy used in making heating elements for electric heating device is Alloy Steel German Silver Nichrome Solder Alloy Steel German Silver Nichrome Solder ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is a by product of sewage treatment and can be decomposed to produce biogas Sewage Scum Sludge Sewer Sewage Scum Sludge Sewer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Can have any value above zero Will always be positive Can never be positive Cannot be negative Can have any value above zero Will always be positive Can never be positive Cannot be negative ANSWER DOWNLOAD EXAMIANS APP
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