MEDICAL PHYSIOLOGY

Detailed explanation-1: -These reactions both result in two completely new compounds through double replacement .

Detailed explanation-2: -An exchange reaction is a chemical reaction in which both synthesis and decomposition occur, chemical bonds are both formed and broken, and chemical energy is absorbed, stored, and released (see Figure 2.3. 1c). The simplest form of an exchange reaction might be: A+BC→AB+C.

Detailed explanation-3: -Double-replacement reactions are reactions in which the positive and negative ions of two ionic compounds exchange places to form two new compounds. Double-replacement reactions generally occur between substances in aqueous solution.

Detailed explanation-4: -A single-replacement reaction replaces one element for another in a compound. A double-replacement reaction exchanges the cations (or the anions) of two ionic compounds.

Detailed explanation-5: -So, on the basis of the above discussion we can say that the correct answer is double displacement reaction. Therefore, correct answer is option B. i.e. in double displacement reaction do two compounds exchange their ions or radicals mutually to form new two compounds.