CBSE Class 12 Chemistry Chemistry In Everyday Life Notes Set F

VSA QUESTIONS (1 - MARK QUESTIONS)

1. Write the formula and IUPAC name of aspirin. [Hint : [IUPAC name : 2-Acetoxybenzoic acid.]

2. Name two types of the drugs classified on the basis of pharmacological effect.

3. What is the role of Bithional in toilet soaps?

4. Why is sodium benzoate added to packed containers of jams and pickles?

5. Name the type of drugs having following structural formula : [Hint : Sulpha Drugs].

6. Why the receptors embedded in cell membrances show selectivity for one chemical messenger over the other? 

[Hint : The active site of receptor has specific shape and specific functional groups which can bind only specific messenger which fits in.] 

7. With reference to which classification has the statement ‘ranitidine is an antacid’ been given?                  [Hint : Classification based on pharmacological effect.] 

8. Give the name of medicine used for the treatment of syphilis. [Hint : Salvarsan]. 

9. Give the composition of tincture of iodine. 

10. How does aspirin act as analgesic? [Hint : Aspirin inhibits the synthesis of prostaglandins which cause pain.] 

11. Name the antiseptic agents present in dettol. [Hint : Chloroxylenol and Terpineol]. 

12. What precaution should be taken before administrating penicillin to a patient? [Hint : To confirm, beforehand that the patient is not allergic to penicilin.] 

13. Explain why aspirin finds use in prevention of heart attacks? [Hint : Due to anti blood clotting activity.] 

14. Mention one use of drug meprobamate. [Hint : Antidepressant drug.]

15. Name the derivative of sucrose which tastes like sugar and can be safely used by weight conscious people. 

16. Why synthetic detergents are preferred over soaps for use in washing machines? [Hint : They work well even with hard water and not form any scum.] 

17. How is acidity cured with cimetidine? 

[Hint. : Cimetidine prevents the interaction of histamines with the receptors present in stomach wall.] 

*18. While antacids and antiallergic drugs interfere with the function of histamines, why do these not interfere with the function of each other? 

[Hint. : Antacids and antiallergic drugs bind to the different receptor sites. Therefore, they do not interfere with the function of each other). 

19. Which of the following two compounds can be used as a surface agent and why? 

[Hint : Compound (i) acts as a surface agent because its one end is hydrophobic while the other end is hydrophillic in nature.]

20. What type of drug is chloramphenicol?

21. Name a chemical used as an antiseptic as well as disinfectant.

22. Give two examples of antidepressants.