Question

Animal charcoal is used to remove moisture:
A.True
B.False

Answer 1

Animal charcoal is obtained from bones, horn, blood, etc. Bone-black, or bone-charcoal, is produced by the destructive distillation of bones in iron retorts, the distillate constituting bone- oil or Dippel's oil.
Complete step by step answer:
The special characteristic of animal charcoal, on which its use depends, is its power to remove moisture because of its strong adsorptive power which means that it act as very strong adsorption agent
As we all know adsorption is a surface phenomenon and animal charcoal acting as an adsorbent provide a surface which have an excess of residual forces to be balanced
Now these residual or unbalance forces make animal charcoal surface very reactive thus moisture acting as an adsorbate gets adsorbed their hence we can state that the statement “Animal charcoal is used to remove moisture” is true

Additional Information:
Also it is well known that a brown solution of raw sugar is decolorized when boiled with animal charcoal. Other substances that are similarly removed from solution are indigo, litmus, iodine, the coloring-matter of red wine, the brown matter of peaty water or sewage, astringent principles, and certain basic salts, as well as fuel oil from alcohol.. Animal charcoal is also employed technically for purifying paraffin and glycerin, and its dust for making ivory-black and blacking. When the power of the charcoal is exhausted it may be renewed by ignition or treatment with reagents.

Note:
Like animal charcoal silica gel is also used to make moist air dry by adsorption of water vapour present in the air on the surface of silica gel. Here silica gel is the adsorbent and water vapors are adsorbate.