Explain the following terms giving one example of each type:(i) Antaci

1.	Explain the following terms giving one example of each type:(i) Antacids(ii) Disinfectants(iii) Enzymes
Answer» (i) Antacids: Chemical substances which remove excess acid in the stomach and raise the pH to appropriate level, e.g., sodium hydrogencarbonate, a mixture of aluminium and magnesium hydroxide, ranitidine, etc. (ii) Disinfectants: These are the chemical substances which kill microorganisms or stop their growth but are harmful to human tissues, e.g., phenol (1%), chlorine in concentration of 0.2 to 0.4 pm in aqueous solution, SO₂ , etc (iii) Enzymes: Enzymes are globular proteins with high molecular mass ranging from 15,000 to 1,000,000 g mol^–1, which form colloidal solution in water. A number of reactions that occur in the body of animals and plants to maintain the life processes are catalyzed by enzymes, therefore enzymes are termed as biochemical catalysts.

Explain the following terms giving one example of each type:(i) Antacids(ii) Disinfectants(iii) Enzymes

Answer»

(i) Antacids: Chemical substances which remove excess acid in the stomach and raise the pH to appropriate level, e.g., sodium hydrogencarbonate, a mixture of aluminium and magnesium hydroxide, ranitidine, etc.

(ii) Disinfectants: These are the chemical substances which kill microorganisms or stop their growth but are harmful to human tissues, e.g., phenol (1%), chlorine in concentration of 0.2 to 0.4 pm in aqueous solution, SO₂ , etc

(iii) Enzymes: Enzymes are globular proteins with high molecular mass ranging from 15,000 to 1,000,000 g mol^–1, which form colloidal solution in water. A number of reactions that occur in the body of animals and plants to maintain the life processes are catalyzed by enzymes, therefore enzymes are termed as biochemical catalysts.

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