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(C) Bone is composed of an organic matrix (collagen) and an inorganic mineral component (calcium salts/hydroxyapatite). When a bone is placed in dilut

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Become flexible

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(C) Bone is composed of an organic matrix (collagen) and an inorganic mineral component (calcium salts/hydroxyapatite). When a bone is placed in dilute $HCl$,the acid reacts with the calcium salts (inorganic component) and dissolves them. This process is known as decalcification. After the removal of calcium,only the flexible organic matrix (collagen) remains. As a result,the bone loses its rigidity and becomes flexible,allowing it to be bent easily.

If a bone piece,such as a frog's femur,is kept in dilute $HCl$ for a week,it will become .......

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