The metal that liberates hydrogen from cold water in bubb...
The metal that liberates hydrogen from cold water in bubbles only is?
Na
K
Ca
Al
Correct answer is C
After a second or so, the calcium metal begins to bubble vigorously as it reacts with the water, producing hydrogen gas, and a cloudy white precipitate of calcium hydroxide.
In the shown experiment (Fig. 1) the litmus paper will initially ...
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