Statement I : The granules of modem gunpowder (also called black powder) are typically coated with Graphite. Statement I : Graphite prevents the build-up of electrostatic charge.

Statement I is true as modern black powder granules are typically coated with graphite during the manufacturing process. This coating serves multiple purposes, including improving the flow of the powder and acting as a lubricant. Statement II is also true and provides the correct explanation for Statement I. Graphite is a form of carbon that conducts electricity. By coating the granules with a conductive material like graphite, manufacturers prevent the build-up of static electricity on the surface of the grains. This significantly reduces the risk of accidental ignition caused by electrostatic discharge during handling, transport, or pouring, which is a critical safety measure for low explosives like black powder.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 4: Carbon and its Compounds > Allotropes of carbon > p. 61
2. [2] Science , class X (NCERT 2025 ed.) > Chapter 3: Metals and Non-metals > Table 3.1 > p. 40