Correct Option
Assertion (A) states that cellulose is used in making shatter-proof glass. This statement is true. Derivatives of cellulose, such as cellulose acetate or cellulose nitrate, are employed as an interlayer in the manufacture of laminated or safety glass. This interlayer provides flexibility and strength, holding glass fragments together upon impact and preventing them from scattering, thereby enhancing safety.
Reason (R) states that polysaccharides are not soluble in water. This statement is false. While cellulose, a prominent polysaccharide, is largely insoluble in water, the generalization that all polysaccharides are not soluble in water is inaccurate. For instance, starch, another polysaccharide, can form colloidal solutions or gels in water. Furthermore, the insolubility of cellulose is not the primary characteristic that makes it suitable for shatter-proof glass; its mechanical properties, such as film-forming ability and tensile strength, are more relevant.
Therefore, Assertion (A) is true, but Reason (R) is false.
Incorrect Options
Options (1) and (2) are incorrect because Reason (R) is false.
Option (4) is incorrect because Assertion (A) is true.