Q.1 Draw a well labelled diagram of:
a. Soda acid fire extinguisher
b. Greenhouse effect
c. Zones of flame
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Soda-acid fire extinguishers comprises of sodium bicarbonate and sulphuric acid. It is the most efficient house-hold fire extinguisher. It consists of a strong iron vessel with a side discharge nozzle. The iron vessel is filled with a sodium bicarbonate solution.
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