Question

Which of the following elements is commonly present in petroleum, fabrics and proteins?

• A. Carbon
• B. Chlorine
• C. Sodium
• D. Calcium

Answer 1

Answer:

A. Carbon

• The most common element in petroleum, fabrics, and proteins is carbon.

• Explanation:

• Petroleum: Petroleum is primarily composed of hydrocarbons, which are molecules made up of carbon and hydrogen atoms.

• Fabrics: Fabrics can be made from natural or synthetic materials.

• Natural fibers like cotton and wool are composed of organic compounds containing carbon, while synthetic fabrics like nylon are derived from petroleum, which is also carbon-rich.

• Proteins: Proteins are made up of amino acids, and each amino acid contains carbon as a core element.