General Knowledge :: Chemistry
- The green colour seen in firework displays is due to the chloride salt of :
- In deep-sea diving, divers use a mixture of gases consisting of oxygen and
- Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ?
- Which of the following is not soluble in water ?
- The three elements most needed in common fertilisers are :
- Which one of the following is not a fertilizer?
- Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?
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