The Biltmore Estate is a French Renaissance-style mansion near Asheville, North Carolina, built by George Washington Vanderbilt II between 1889 and 1895. It is the largest privately-owned in the United States, at 175,000 square feet and featuring 250 rooms.
A triiodide (I 3 â) solution formed by mixing iodine and iodide (usually from potassium iodide) is used to test for starch; a dark blue color indicates the presence of starch.
The HCL Challenge: Why The Conventional Test Is DEAD Wrong. The conventional HCL challenge test involves the ingestion of Betaine Hydrochloride in order to gauge if the parietal cells of your stomach are producing adequate amounts of stomach acid. The test typically involves taking one HCL pill with food and then increasing by one per day until a burning occurs.