Pick up the correct statement from the following: A. The phenol is carbolic acid B. The phenol is either extracted from coal-tar or prepared from benzene C. Phenol reacts with formaldehyde, to form phenol formaldehyde resin D. All the above

The correct answer is D. All of the above.

Phenol is a chemical compound with the formula C6H5OH. It is a white, crystalline solid that is soluble in water. Phenol is a weak acid and is also known as carbolic acid. It is a common disinfectant and antiseptic.

Phenol is either extracted from coal-tar or prepared from benzene. Coal-tar is a byproduct of the production of coke from coal. Benzene is a hydrocarbon that is found in petroleum.

Phenol reacts with formaldehyde to form phenol formaldehyde resin. Phenol formaldehyde resin is a type of thermosetting resin. Thermosetting resins are cured by heat or pressure and cannot be melted or reshaped once they have cured. Phenol formaldehyde resin is used in a variety of products, including adhesives, laminates, and plastics.

Here are some additional details about each of the options:

• Option A: Phenol is carbolic acid. This is true. Phenol is also known as carbolic acid. It is a weak acid and is used as a disinfectant and antiseptic.
• Option B: Phenol is either extracted from coal-tar or prepared from benzene. This is also true. Phenol can be extracted from coal-tar or prepared from benzene. Coal-tar is a byproduct of the production of coke from coal. Benzene is a hydrocarbon that is found in petroleum.
• Option C: Phenol reacts with formaldehyde, to form phenol formaldehyde resin. This is also true. Phenol reacts with formaldehyde to form phenol formaldehyde resin. Phenol formaldehyde resin is a type of thermosetting resin. Thermosetting resins are cured by heat or pressure and cannot be melted or reshaped once they have cured. Phenol formaldehyde resin is used in a variety of products, including adhesives, laminates, and plastics.