Download RTMNU B.Pharma 4th Semester 2017 Winter Pharmaceutics 4 (Unit Operations) Question Paper

Download RTMNU (Rashtrasant Tukadoji Maharaj Nagpur University) B.Pharma (Bachelor of Pharmacy) 4th Semester 2017 Winter Pharmaceutics 4 (Unit Operations) Question Paper

NRJ/KW/17/4273
B.Pharm. Semester?IV (C.B.S.) Examination
PHARMACEUTICS?IV (UNIT OPERATIONS)
Paper?l
Time : Three Hours] [Maximum Marks : 80
NB. :? (1) Question N0. 1 is compulsory.
(2) Solve any FOUR questions from remaining.
(3) Draw neat labelled diagram wherever necessary.
1. Solve any FIVE 0f the following :
(a)
(b)
(C)
(d)
(e)
(f)
(g)
2. (a)
(b)
3. (a)
(b)
4. (a)
(b)
5 . (a)
(b)
6. (a)
(b)
De?ne the terms relative humidity, dew point, dry bulb and wet bulb temperature.
What is azeotropic mixture ? How it can be separated ? State suitable example.
Draw FMC curve showing it's different zones. De?ne EMC and CMC. Give its signi?cance.
Describe the principle of vacuum crystallizer with neat labelled diagram.
State three steps of crystallization. Write short note on nucleation and crystal growth.
Explain the mechanisms of heat ?ow. What is black body and grey body ?
Explain the principle, working and use of Swenson Walker crystallizer. 5X4=20
Explain Miers theory of supersaturation; state its limitations. 8
Describe principle, construction, working and use of Krystal crystallizer. 7
Give classi?cation of evaporators. Describe forced circulation evaporator in detail. 8
Write a note on capacity and economy of multiple effect evaporators. 7
State Fourier's Law. Give its signi?cance. Derive equation for conduction of heat through number
of resistances. 8
What are heat exchangers and interchangers ? Describe tubular heaters in detail. 7
De?ne corrosion. Describe the method for prevention of corrosion. 8
What is humidi?cation ? Draw well labelled diagram of humidi?er and discuss its principle.
7
De?ne drying. State classi?cation of dryers with suitable examples. Discuss principle, construction
and working of spray dryer with neat diagram. 8
Elaborate on molecular distillation in detail. 7
7. Write short notes on (any three) :
(1)
(2)
(3)
(4)
Freeze dryer
Fractional distillation
Film evaporator
Refrigerants and refrigeration cycle. 5X3=15
POY?25685