Saturday, March 27, 2010

Emulsions

1. An emulsion is a system of two ----------------- liquid phases, one of which is dispersed as fine globules throughout the other.

a. miscible     
b.  polar   
c. non-polar     
d.  Immiscible 
----------------
2. One of the two phases of emulsion is usually -------------------- in pharmacy.

a. water    
b. Oils    
c. Spirits   
d. Alcohols
----------------                                                 
3. Best example of w/o emulsion is;

a. Rubber latex   
b.  Egg yolk   
c. vanishing creams     
d. cold creams
-----------------
4. Best example of o/w emulsions;

a. hydrous  ointment    
b.  Calamine lotion    
c .  Milk     
d.  Cold creams
----------------
5. In HLB system, wetting agents range b/w;




a. 10-18     
b.  7-9      
c.   4-6      
d.   1-3                                                       
-----------------
Answers to MCQs of Emulsions
1. d
2. a
3. d
4. c
5. b

(These MCQs are helpful for students of pharmacy) 





Sprays

1. Spray solutions are _______________solutions;


a. Aquous
b. Alcoholic 
c. oily 
d. a and b
-------------
2. The most commonly dispensed drugs as spray solution is _____________ ;


a. Cholinergic agonist
c. Isoprenalline 
d. prazosin
------------
3. Sprays are mostly use for the relief  of __________; 
a. Angina 
b. Allergy 
c. Asthma 
d. Hypnotic  
------------------- 
4. ____________ Have the advantage of producing a more accurately controlled dose of  drug in particular form;

a. Metered aerosol
b. Controlled aerosol
c. Controlled dose aerosol
d. None of the Above

------------------
5. The particle size can be controlled to ensure that drug penetrate into the _____________

a. Blood vessels
b. Nasal membrane
c. Bronchial tree
d. a and b
----------------
Answers to MCQs of sprays:
1. d
2. c
3. c
4. a
5. c


(This blog is helpful for students of Pharmaceutics)
USP NF 2009 (United States Pharmacopeia/National Formulary)

Friday, March 26, 2010

English Vocabulary

Allegro: Quickly

Allure: Attracting powerfully
Alluvion: Land formation
Almoner: Hospital Social Worker
Aloin: Laxative
Aloof: Distant
Alp: High land or high mountain
Alpenglow: Sunglow on highlands or mountains
Alpinist: Climber
Altercate: Bicker, To argue in a bad tampered way
MCQs:
1. Alluvion
a. Quickly
b. Laxative
c. Land formation
d. Climber
----------------
2. Aloof

a. Distant
b. Climber
c. Bicker
d. High land
----------------
3. Alpinist

a. Bicker
b. Climber
c. Attracting powerfully
d. Hospital social worker
------------------
Further Reading:



Pharmaceutical Organic Chemistry

Multiple Choice Question (MCQs) of Organic Pharmaceutical Chemistry

1. The analgesic action of aspirin is removed, if

a. Carboxyl group is removed
b. Acetoxy group is removed
c. Carboxyl group is not attached on ortho position
d. All of the above
--------------------
2. Diastereoisomerism and enantiomorphism is shown in

a. Ephedrine and pseudoephedrine
b. D and L-ephedrine
c. Ephedrine & pseudoephedrine and D & L-ephedrine respectively
d. D & L-ephedrine and Ephedrine & pseudoephedrine respectively
--------------------
3. Caffeine is presented as a/an

a. Purine derivative
b. Pyrimidine derivative
c. Imidazole derivative
d. both b and c
--------------------
4. A group that can donate an electron pair is

a. Bronsted acid
b. Bronsted base
c. Lewis acid
d. Lewis base
--------------------
5. Hendersen-Hasselbalch equation is represented by

a. Ka = [A][H+]/[HA]
b. pKa + pKb = 14
c. pKa = pH + log [HA]/[A-]
d. both a and c
--------------------
6. Which of the following is through space-effects on polarizability due to electronegativity differences?

a. Field effect
b. Inductive effect
c. Resonance effect
d. Polarizability
--------------------
7. Which of the following is the ease of distortion of the electron cloud?

a. Field effect
b. Inductive effect
c. Resonance effect
d. Polarizability
--------------------
8. Which of the following occurs as a result of electronegativity differences?

a. Field effect
b. Inductive effect
c. Resonance effect
d. None of the above
--------------------
9. Which of the following involves the actual movement of electrons through a pie-bond system?

a. Field effect
b. Inductive effect
c. Resonance effect
d. None of the above
--------------------
10. The movement of electrons through a conjugated system allows for charges to be dispersed over several atoms. This phenomenon is

a. Localization
b. Delocalization
c. Polarization
d. Depolarization
--------------------
11. Which of the following is less influenced by distance?

a. Field effect
b. Inductive effect
c. Resonance effect
d. both a and c
--------------------
12. Which of the following is a carbonyl based group?

a. esters
b. nitro-
c. alcohols
d. ethers
--------------------
13. Which of the following shows electron withdrawing groups?

a. phenyl
b. ethers
c. amines
d. alkyl groups
--------------------
14. Which of the following shows electron donating group?

a. amides
b. esters
c. ketones
d. amines
--------------------
15. Which of the following has minimum pKa value or maximum acidic strength?

a. imide
b. sulphonamide
c. N-arylsulfonamide
d. sulfonimide
--------------------
16. sigma-bonding electrons, especially those from C-H bonds can be donated in a process known as

a. conjugation
b. hyperconjugation
c. polarization
d. depolarization
--------------------
17. Which of the following has neutral pKa value?

a. Water
b. Ether
c. Amide
d. All of the above
--------------------
Answers to multiple choice questions (MCQs) in Organic Pharmaceutical Chemistry

1. d
2. c
3. a
4. d
5. c
6. a
7. d
8. b
9. c
10. b
11. c
12. a
13. a
14. d
15. d
16. b
17. d

(These MCQs are helpful for the preparation of Organic Pharmaceutical Chemistry Exams)

Further reading:
Pharmaceutical Organic Chemistry

Wilson & Gisvold's Textbook of Organic Medicinal and Pharmaceutical Chemistry (Wilson and Gisvold's Textbook of Organic and Pharmaceutical Chemistry)

Texbook of Pharmaceutical Organic Chemistry

Inorganic and Organic Chemistry: " A " Level Multiple Choice Questions

Ace Organic Chemistry (Multiple Choice Questions)

Thursday, March 25, 2010

Miscellaneous applications of Inorganic Chemistry in Pharmacy

Multiple Choice Question (MCQs) of Inorganic Pharmaceutical Chemistry

1. Which of the following is used as Carbon dioxide source in the preparation of effervescent mixtures?

a. Sodium dihydrogen phosphate
b. Sodium carbonate
c. Sodium bicarbonate
d. Sodium citrate

--------------------
2. Sodium bicarbonate is used as

a. Systemic alkalizer
b. Systemic acidifier
c. Gastric antacids
d. both a and c
--------------------
3. Aluminium ion in solution is an excellent

a. Germicide
b. Astringent
c. Protective
d. Pigment
--------------------
4. Lime water, a saturated solution of fresh Calcium hydroxide is

a. Germicide
b. Astringent
c. Protective
d. Pigment
--------------------
5. The most important innocuous pigments are the

a. Iron oxides
b. Zinc oxides
c. Aluminium hydroxide
d. Antimony sodium tartarate
--------------------
6. Which of the following is used as a diluent for oxygen

a. Helium
b. Nitrogen
c. CO2
d. Nitrogen (I) oxide
--------------------
7. Which one of them is an excellent expectorant?

a. Ammonium chloride and carbonate
b. Hydriodic acid syrup
c. Water vapour
d. Ammonium and potassium iodides
--------------------
Answers to multiple choice questions (MCQs) in Inorganic Pharmaceutical Chemistry

1. c
2. a
3. b
4. b
5. a
6. b
7. c

Water

Multiple Choice Question (MCQs) of Water

1. How much Earth’s surface is covered with liquid water?

a. 65%
b. 70%
c. 75%
d. 77.5%
--------------------
2. Water constitutes about _______ of human body?

a. 65%
b. 70%
c. 75%
d. 77.5%
--------------------
3. Which of the following has strongest hydrogen bonding?

a. Hydrogen flouride
b. Ammonia
c. Water
d. both a and c
--------------------
4. The Kw for water is

a. 10^-11
b. 10^-12
c. 10^-13
d. 10^-14
--------------------
5. Which of the following when dissolved in water causes temporary hardness?

a. bicarbonate
b. sulphate
c. chloride
d. both b and c
--------------------
Answers to multiple choice questions (MCQs) of Water in Inorganic Pharmaceutical Chemistry

1. c
2. b
3. c
4. d

Group VIII

Multiple Choice Question (MCQs) of Group VIII

1. Compound of which of the following element is used as hematinics?

a. iron
b. cobalt
c. Manganese
d. Nickel
--------------------
2. Iron (III) compounds and their preparations have

a. Very poor absorption
b. Poor absorption
c. Better absorption
d. very good absorption
--------------------
3. Which of the following is the only cobalt compound officially cited?

a. Vitamin B1
b. Vitamin B 3
c. Vitamin B6
d. Vitamin B12
--------------------
Answers to multiple choice questions (MCQs) of Group VIII in Inorganic Pharmaceutical Chemistry

1. a
2. b