Forwarded from عقاقير / Exams
the isolation of caffeine from tea or for the purification of materials present in a crude extrac Done by
Anonymous Quiz
15%
Fractional liberation
66%
Sublimation
19%
a and b
Forwarded from عقاقير / Exams
An example of............... mixture of alkaloid salts in aqueous solution,
Anonymous Quiz
81%
Fractional liberation
10%
Sublimation
9%
A and B
👍2
Forwarded from عقاقير / Exams
a mixture of alkaloid salts in aqueous solution, when treated with alkali,
will give first the greater base in the free state
will give first the greater base in the free state
Anonymous Quiz
46%
T
54%
F
Forwarded from عقاقير / Exams
In this method we use a special apparatus which is called Clevenger
Anonymous Quiz
26%
Liquid- liquid extraction
26%
solvent extraction
48%
Both
👍2
Forwarded from عقاقير / Exams
in solvent extraction the aim of transferring one or more of the solutes from the solution to the second solvent.
Anonymous Quiz
86%
T
14%
F
Forwarded from عقاقير / Exams
types of Hydro distillation for isolating essential oils from plant materials:
Anonymous Quiz
1%
Water distillation
3%
Water and steam distillation
3%
Direct steam distillation
93%
All
Forwarded from عقاقير / Exams
TYPES OF CLEVENGER TRAPS:
Anonymous Quiz
1%
FOR OILS LIGHTER THAN WATER
2%
FOR OILS HEAVIER THAN WATER
96%
All
2%
non
Forwarded from عقاقير / Exams
يبقى وياني اخر واهم سلايدين بالملزمة
يعني لازم يجي منهم كم Mcq🔥🔥⬇️⬇️
يعني لازم يجي منهم كم Mcq🔥🔥⬇️⬇️
Forwarded from عقاقير / Exams
Forwarded from عقاقير / Exams
Forwarded from عقاقير / Exams
Forwarded from عقاقير / Exams
يبقى الجدول ...طريقة السؤال حسب كلام الدكتورة يجي tow solvents يصير بيناتهم mixture والمطلوب تعرف Low Layer
فحسب الجدول تقارن بين المذبين وتعرف منو الاثقل هوة يصير ب Low Layer 🔥كلش مهم
فحسب الجدول تقارن بين المذبين وتعرف منو الاثقل هوة يصير ب Low Layer 🔥كلش مهم
❤5👍1
نهاية كوز الملزمه الخامسه ( لكجر ١٠ ) 🧡🔥🌚
عمار خلص الكم خمس لكجرات كوزات 🧡🌚
عاشت ايدك عمار حبيبي ما قصرت 🧡🧡
عمار خلص الكم خمس لكجرات كوزات 🧡🌚
عاشت ايدك عمار حبيبي ما قصرت 🧡🧡
❤5
Forwarded from MO (⅃ᓄؤᓄ)
colorful separation of plant pigments was done using a column of potassium carbonate(chalk)
Anonymous Quiz
60%
F
40%
T
❤1
Forwarded from MO (⅃ᓄؤᓄ)
CHROMATOGRAPHY Technique used to separate and identify the
components of a mixture
components of a mixture
Anonymous Quiz
90%
T
10%
F
🔥1
Forwarded from MO (⅃ᓄؤᓄ)
Molecules that spend most of their time in the mobile phase are carried along
Anonymous Quiz
75%
Faster
25%
Slower
👍1
Forwarded from MO (⅃ᓄؤᓄ)
solvent that flows through the supporting medium
Anonymous Quiz
66%
mobile phase
13%
stationary phase
6%
supporting medium
15%
All of the above
Forwarded from MO (⅃ᓄؤᓄ)
supporting medium: a liquid surface on which the stationary phase is bound or coated
Anonymous Quiz
42%
T
58%
F
Forwarded from MO (⅃ᓄؤᓄ)
Adsorbtion: Interaction of solute molecules with the surface of the mobile phase
Anonymous Quiz
75%
F
25%
T
👍1