Question

Deionised water is obtained in an ion exchange method. If this is true enter \[1\], if false enter \[0\].

Answer 1

Hint:Deionised water is the water which is free from ions. Ions are the positively and negatively charged species which are considered as impurities. Ion exchange resin is used for removing these ions from water.

Complete step by step answer:
-Deionisation is also termed as demineralization which indicates the removal of ions. Ions are the electrically charged atoms present in water which dissolves in water when water passes over various rock salts. These ions are either positively charged or negatively charged.
-Deionised water is frequently used in many applications. It is commonly used in laboratories for carrying analytical based purifications. The buffer solutions are prepared using deionised water. The purest form of deionised water is known as milli-Q water.
-Ions carrying positive charge are called cations and carrying negative charge is called anions. For exchange of these undesirable ions with hydrogen and hydroxyl ion exchange resins are used. The hydrogen ion and hydroxyl ion form pure water. This is the basic concept used in ion exchange resin purification.
-These resins are composed of organic polymer chains which contain charged functional groups. Each functional group possesses either a positive or a negative charge. Cation resin contains a negative functional group hence attracts positively charged ions while anion resin contains a positive functional group and hence attracts negatively charged ions.
-Cation resins used are of two types one is weak acid cation (WAC) and the other is strong acid cation (SAC). Similarly, anion resin is of two types one is weak base anion (WBA) and other is strong base anion (SBA). The use of these resins depends on the impurity present in water and the quality of water to be produced.
The statement is true so enter \[1\].

Note:
The ion content is measured with the help of electrical conductance measurement. The lower the value of the conductance the more deionised the water is.