. Explain the following terms giving one example of each type:


(i)Antacids

(ii)Disinfectants

(iii) Enzymes

Best Answer

Ans.(i)Antacids: Those substances which neutralize the excess acid and raise the pH to an appropriate level in stomach are called antacids.

Example: Sodium bicarbonate, Mg(OH)2

(ii)Disinfectants: Disinfectants are chemical compounds which kill microorganisms but are not safe when applied on living organisms.

Example: Phenol, chlorine.

(iii) Enzymes: Enzymes are biological catalysts which are chemically globular proteins having high molecular mass and highly specific in their actions due to presence of active sites of definite shape and size on their surfaces so that only specific substrate can fit in them. Example: Pepsin, amylase

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