Give the names of elements present in Quicklime ,Hydrogen bromide ,Baking powder ,Potassium sulphate
The Correct Answer and Explanation is:
1. Quicklime
Quicklime is chemically known as calcium oxide (CaO). The elements present in quicklime are:
- Calcium (Ca)
- Oxygen (O)
2. Hydrogen Bromide
Hydrogen bromide is a compound consisting of hydrogen and bromine. The elements present in hydrogen bromide are:
- Hydrogen (H)
- Bromine (Br)
3. Baking Powder
Baking powder is a mixture of compounds that contains sodium bicarbonate (NaHCO3), along with acids like cream of tartar (potassium bitartrate) and cornstarch. The primary elements in baking powder are:
- Sodium (Na)
- Hydrogen (H)
- Carbon (C)
- Oxygen (O)
- Potassium (K)
4. Potassium
Potassium is a chemical element with the symbol K. It is a soft, silvery-white alkali metal. The element present in potassium is:
- Potassium (K)
Explanation:
Each of these substances contains specific combinations of elements based on their chemical composition.
- Quicklime (CaO) is formed when calcium carbonate (CaCO3) is heated, releasing carbon dioxide and leaving calcium oxide. Calcium is an alkaline earth metal, and oxygen is a non-metal.
- Hydrogen Bromide (HBr) is a simple binary compound made from the combination of hydrogen, a non-metal, and bromine, a halogen.
- Baking Powder typically contains sodium bicarbonate (NaHCO3), which includes sodium (Na), hydrogen (H), carbon (C), and oxygen (O), and may also include potassium (K) in the form of potassium bitartrate.
- Potassium is an element in the alkali metal group of the periodic table and is essential in various biological processes. It is typically found in compounds such as potassium chloride (KCl) but can also exist as a pure element.
