General Knowledge :: Chemistry
- Where does the oxygen that keeps us alive come from?
- In chemical terms, what are alums used for purifying water for drinking purposes ?
- Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water.
- If water smells bad, then that odour can be removed by adding
- Surface water is a better source of drinking water because it is poor in
- Which one of the following acids is used in battery ?
- Which of the following is the strongest base in aqueous solution ?
- Which of the following acids serves as an electrolyte in a lead storage battery?
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