Which out of the following is derived from the ocean waters?a)Limeston...
Answer:Introduction
Ocean waters are a vast source of various minerals and substances that are essential for our everyday lives. Many natural resources are derived from the ocean waters, including limestone, sandstone, cobalt, and bromine. However, out of these options, only bromine is directly derived from the ocean waters.
Bromine
Bromine is a chemical element that exists as a reddish-brown liquid at room temperature. It is primarily obtained from seawater, which contains a small concentration of bromine salts. The extraction of bromine from seawater involves a process called electrolysis.
Electrolysis Process
During the electrolysis process, two electrodes are submerged in the seawater, and an electric current is passed through them. This causes the bromine ions present in the water to migrate towards the positively charged electrode, where they are collected.
Uses of Bromine
Bromine has several important applications in various industries. It is widely used in the production of flame retardants, which are added to materials such as textiles, plastics, and electronics to reduce their flammability. Bromine is also used in the manufacturing of pharmaceuticals, agricultural chemicals, and dyes. Additionally, it is utilized in water treatment to disinfect and purify drinking water.
Other Options
Limestone and sandstone are sedimentary rocks that are formed by the accumulation and compaction of sediments over time. While these rocks may contain traces of minerals derived from seawater, they are not directly derived from the ocean waters themselves.
Cobalt, on the other hand, is a transition metal that is primarily obtained as a byproduct of nickel and copper mining. It is not directly derived from the ocean waters.
Therefore, out of the given options, only bromine is derived from the ocean waters through the process of electrolysis.