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.
Home pregnancy tests (HPTs) are quite accurate. They work by detecting the presence of human chorionic gonadotropin (hCG) in the urine, which is produced when pregnancy occurs. However, different brands of tests are able to recognize different amounts of the hormone.