Post Test Prak Fitokimia KLT Fraksi
Quiz
•
Chemistry, Science
•
5th Grade
•
Practice Problem
•
Medium
Gung RYP
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fase diam yang digunakan pada identifikasi hasil fraksinasi (ECC) secara KLT yaitu:
Plat Al Silika gel GF254
Whatmann paper
Plat Al Silika gel-C18 GF254
Plat Al RP-Silika gel GF254
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fase gerak yang digunakan dalam melakukan kromatografi lapis tipis (KLT) pada proses pemisahan fraksi-fraksi dari ekstrak daun seledri yaitu:
n-heksan:etilasetat (5:1 v/v)
n-heksan:etilasetat (1:5 v/v)
n-heksan:asamasetat (5:1 v/v)
n-heksan:asamasetat (1:5 v/v)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fase gerak yang digunakan dalam melakukan kromatografi lapis tipis (KLT) pada proses pemisahan fraksi-fraksi dari ekstrak kulit batang kina yaitu:
CHCl3-MeOH (9:1 v/v)
CHCl3-MeOH (1:9 v/v)
n-heksan:etilasetat (5:1 v/v)
n-heksan:asamasetat (1:5 v/v)
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Sampel yang ditotolkan pada Plat KLT pada kromatografi lapis tipis (KLT) pada proses pemisahan fraksi-fraksi dari ekstrak kulit batang kina yaitu:
Fase air
Fase etil asetat I
Fase etil asetat II
Fase Butanol
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Sampel yang ditotolkan pada Plat KLT pada kromatografi lapis tipis (KLT) pada proses pemisahan fraksi-fraksi dari ekstrak daun seledri yaitu:
Ekstrak Metanol
Fraksi Butanol
Fraksi Air
Fraksi Etil Asetat
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada suatu sistem KLT, digunakan fase gerak (eluen) dengan komposisi Kloroform: Metanol (9:1 v/v), bila diminta menyiapkan 10 mL eluen, maka volume Metanol yang diambil yaitu:
1mL
2mL
4,5mL
9mL
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada suatu sistem KLT, digunakan fase gerak (eluen) dengan komposisi n-heksana: etilasetat (5:1 v/v), bila diminta menyiapkan 10 mL eluen, maka volume etilasetat yang diambil yaitu:
1mL
2mL
4,5mL
9mL
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