The odd one out is slaked lime. Marble, chalk, and limestone are all types of limestone, while slaked lime is a product of calcining limestone.
Marble is a metamorphic rock formed from limestone. It is composed of calcite, a form of calcium carbonate. Marble is typically white, but it can also be found in other colors, such as pink, green, and black. It is a popular material for sculpture and architecture.
Chalk is a sedimentary rock composed of calcium carbonate. It is typically white or light gray in color. Chalk is used as a writing material, as a filler in paint and
cosmetics, and as a component of tennis balls.Limestone is a sedimentary rock composed of calcium carbonate. It is typically white, gray, or brown in color. Limestone is used as a building material, as a source of lime, and as a fertilizer.
Slaked lime is a product of calcining limestone. Calcining is the process of heating limestone to a high temperature, which causes it to decompose into calcium oxide and carbon dioxide. Slaked lime is a white powder that is used as a base in many industrial and commercial applications.