1.

a) What would happen if sodium and potassium are kept in open air? [2 MARKS] b) Which gas is used for extinguishing flames? How does it work? [3 MARKS]

Answer»

a) What would happen if sodium and potassium are kept in open air? [2 MARKS]
b) Which gas is used for extinguishing flames? How does it work? [3 MARKS]



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