When sodium is dissolved in water, it melts to form silver ball and____
(float/sinks) upon the surface of water which keeps on darting
in all directions and keeps on giving off tiny____ (hydrogen/oxygen) gas bubbles. The ball keeps on_____
(increasing/decreasing) in size and catches fire with______ (lilac/yellow) flame and finally disappears leaving water with soapy touch and slightly ____ (cold/warm) if then tested with litmus paper, it turns_____ (red to blue/blue to red) signifying that there is the formation of alkali.
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Answer:
sinks
oxygen
increasing
yellow
warm
red to blue
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