1. OBJECTIVE QUESTIONS
FOR
NEET AIIMS JIPMER

2. CHEMISTRY IN EVERYDAY LIFE
SET 2
MCQ’S

3. Q1. The local anaesthetic, which is used for small surgical operation is
Ether
Nitrous oxide
Cyclopropane
Procaine

4. ANSWER (D) EXPLANATION
Procaine is a local anaesthetic, which affects only a part of the body insensitive to pain or feeling. Ether, nitrous oxide and cyclopropane are general anaesthetics

5. Q2. The drug used as an antidepressant is
Luminal
Tofranil
Mescaline
Sulphadiazine

6. ANSWER (A) EXPLANATION
Luminal and seconal are used as an antidepressant.

7. Q3. Match the following and choose the correct option.
Column I
Column II
Ranitidine
Tranquilliser
B. Furacine
2. Antibiotic
C. Phenelzine
3. Antihistamine
D. Chloramphenicol
4. Antiseptic

8. ANSWER (A) EXPLANATION
A3 B4 C 1 D2

9. Q4. The pH value of gastric juice in human stomach is about 1
Q4. The pH value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The pKa value of aspirin is 3.5. Aspirin will be
Ionized in the small intestine and almost unionized in the stomach
Unionized in the small intestine and in the stomach
Completely ionized in the small intestine and in the stomach
Ionized in the stomach and almost unionized in the small intestine

10. ANSWER (A) EXPLANATION
Aspirin is a moderate acid (pKa=3.5) hence, it is almost unionized in stomach due to its strong acidic medium because of HCl. It is due to common ion effect.
While in small intestine, the medium is alkaline, hence aspirin will be sufficiently ionized in small intestine.

11. Q5. Which of the following will not enhance nutritional value of food?
Minerals
Artificial sweeteners
Vitamins
Amino acids

12. ANSWER (C) EXPLANATION
Vitamins doesn’t enhance nutritional value of food

13. Q6. Among the following sweeteners, which one has the lowest sweetness value?
Alitame
Aspartame
Saccharin
Sucralose

14. ANSWER (B) EXPLANATION
Aspartame Is 100 times sweeter than sugar (used only in cold foods and soft drinks).
Saccharin is 550 times sweeter than sugar
Sucralose is 600 times sweeter than sugar
Alitame is 2000 times sweeter than sugar
(the latter three are used for cooking and baking).

15. Q7. Sucralose, an artificial sweetener’ is
Monochloro derivative of sucrose
Dichloro derivative of sucrose
Trichloro derivative of sucrose
None of these above

16. ANSWER (C) EXPLANATION
Trichloro derivative of sucrose

17. Q8. Which of the following is used as food preservative?
Sodium benzoate
Potassium chloride
Sodium bicarbonate
Both (b) and (c)

18. ANSWER (A) EXPLANATION
Sodium benzoate

19. Q9. Which of the following statement is not correct?
Some antiseptics can be added to soaps
Dilute solutions of some disinfectants can be used as an antiseptic
Disinfectants are antimicrobial drugs
Antiseptic medicines can be ingested

20. ANSWER (D) EXPLANATION
Antiseptic medicines are for local use

21. Q10. Compound which is added to a soap to impart antiseptic properties is
Sodium lauryl sulphate
Sodium dodecyl benzene sulphonate
Rosin
Bithional

22. ANSWER (D) EXPLANATION
Bithional is an antiseptic, which is mixed with soap to impart antiseptic property, Soap thus prepared is known as medicated soap.

23. Q11. Which of the following is known as invert soap?
Pentaerythritol monostearate
Sodium strearyl ammonium bromide
Sodium stearyl sulphate
Ethoxylated nonyphenol

24. ANSWER (B) EXPLANATION
Trimethyl stearyl ammonium bromide is known as invert soap.
invert soap - a class of synthetic detergents in which the surface-active part of the molecule is the cation. cationic detergent.

25. Q12. Which of the following represents soap?
C17H35COOH
C17H35COOK
C15H31COOH
C17H35(COO)2 Ca

26. ANSWER (B) EXPLANATION
Soaps are the sodium or potassium salts of higher fatty acids. E.g. C17H35COOK (potassium strearate).
These are obtained by alkaline hydrolysis of oils and fats (saponification).

27. Q13. Which of the following is not true for a detergent molecule?
It has a non-polar organic part and a polar group
It is not easily biodegraded
It is sodium salt of a fatty acid
It is a surface active reagent

28. ANSWER (C) EXPLANATION
Soap is a sodium or potassium salt of fatty Acids while detergent is asodium salt of benzene sulphonic acid derivatives.

29. Q14. Detergents are prepared by the action of H2SO4 followed by neutralisation by starting with
Cholesterol
Cyclohexanol
Lauryl alcohol
p – nitrophenol

30. ANSWER (C) EXPLANATION
Detergents are prepared by sulphonation of lauryl alcohol followed by neutralization

31. Q15. Structurally, biodegradable detergents should contain
Highly branched alkyl chain
Normal alkyl chain or less branched alkyl chain
Cyclopentyl side chain
Benzyl side chain

32. ANSWER (B) EXPLANATION
The detergents having unbranched alkyl chains or alkyl chain with minimum branching can biodegraded more easily by bacteria.

33. Q16. Soaps are classified as
Esters
Ethers
Carbohydrates
Sodium salts of fatty acids

34. ANSWER (D) EXPLANATION
Soaps are sodium salts of fatty acids. These are formed by heating fat (i.e. glyceryl ester of fatty acid) with aqueous sodium hydroxide solution (saponification).

35. Q17. Which of the following compounds is not an antacid?
Aluminium hydroxide
Climetidine
Phenelzine
Ranitidine

36. ANSWER (C) EXPLANATION

37. Q18. H1-receptor antagonists is a term associated with
Antiseptics
Antihistamines
Antacids
Analgesics

38. ANSWER (B) EXPLANATION
The term antihistamine refers only to compounds not have inhibits action at the H1-receptor so, the term H1-receptor antagonists is related with antihistamines.

39. Q19. Which of the following statement about aspirin is not true?
It is effective in relieving pain
It is aneurologically active drug
It has antiblood clotting action
It belong to narcotic analgesics

40. ANSWER (D) EXPLANATION
Aspirin is a non- narcotic ( non –habit forming) analgesic, i.e.give relif from pain and also it have antiblood clotting action. It is a neurologically active drug.

41. Q20. Aspirin is known as Acetyl salicylic acid Phenyl salicylate
Acetyl salicylate
Methyl salicylic acid

42. ANSWER (A) EXPLANATION
Aspirin is acetyl derivative of salicylic acid.

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