>
Exams
>
Physical Pharmacy
>
Surface and interfacial phenomenon
>
hlb of span and tween surfactants may be obtained
Question:
HLB of SPAN and TWEEN surfactants may be obtained from which of the following equations
GPAT - 2016
GPAT
Updated On:
Jul 15, 2024
HLB =
E
5
\frac{E}{5}
5
E
HLB =
(
E
+
P
)
5
\frac{(E+P)}{5}
5
(
E
+
P
)
HLB =
20
[
(
1
−
S
)
A
]
20[\frac{(1-S)}{A}]
20
[
A
(
1
−
S
)
]
HLB (hydrophilic group numbers)- (lipophilic group numbers)+7
Hide Solution
Verified By Collegedunia
The Correct Option is
C
Solution and Explanation
The correct option is (C): HLB =
20
[
(
1
−
S
)
A
]
20[\frac{(1-S)}{A}]
20
[
A
(
1
−
S
)
]
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Surface and interfacial phenomenon
The interfacial tension of Oleic acid against water at 20°C is:-
GPAT - 2018
Physical Pharmacy
Surface and interfacial phenomenon
View Solution
HLB value of tragacanth is:-
GPAT - 2018
Physical Pharmacy
Surface and interfacial phenomenon
View Solution
What is the surface tension of water of at 25°C
GPAT - 2016
Physical Pharmacy
Surface and interfacial phenomenon
View Solution
View All
Questions Asked in GPAT exam
Match the following antibodies with their correct description:
Antibody
Description
P. IgE
(i) Cross the placenta
Q. IgG
(ii) Dominant antibody produced in immune responses
R. IgM
(iii) It is found in the mother's milk
S. IgA
(iv) Responsible for autoimmune responses including allergies
GPAT - 2024
Different classes of therapeutic drugs
View Solution
Core tablet coated with cellulose acetate phthalate has been administered to a patient. Where do you expect the drug to be released:
GPAT - 2024
Tablets
View Solution
An elixir contains 47 % v/v alcohol, what is the proof spirit according to USP:
GPAT - 2024
Liquids(solutions, syrups, elixirs, spirits, aromatic water, liquid for external uses)
View Solution
Which of the following is an aryl acetic acid derivative:
GPAT - 2024
carbonyl compounds
View Solution
Calculate the
λ
max
\lambda_{\text{max}}
λ
max
of the following molecule:
GPAT - 2024
Nucleic acid: replication, transcription, splicing, translation
View Solution
View More Questions