Question

Nitrocellulose glue is prepared from:

(a) Pyridine

(b) Benzene

(c) Pyroxylin

(d) Resin

I got this question in exam.

I'm obligated to ask this question of Adhesives in section Materials for Construction of Basic Civil Engineering

Answer 1

The correct answer is:

(c) Pyroxylin

Explanation: Nitrocellulose glue is made from pyroxylin, which is a form of nitrated cellulose. Pyroxylin is obtained by nitrating cellulose with a mixture of nitric and sulfuric acid. This nitration process makes the cellulose more reactive, allowing it to form a gel-like substance when combined with other chemicals, such as solvents, to create adhesives or coatings. Nitrocellulose glue is commonly used in applications such as wood finishing, as well as in some types of lacquers and coatings.

• Pyridine: This is a basic nitrogenous organic compound and is not involved in the preparation of nitrocellulose glue.
• Benzene: While benzene is used as a solvent in some adhesive formulations, it is not the main ingredient for making nitrocellulose glue.
• Resin: Resins are a broad category of materials used in adhesives but are not specifically used to prepare nitrocellulose glue.

Therefore, pyroxylin is the correct answer.