
Uji Kualitas Senyawa Kimia
Authored by mluqman alh
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tujuan dari praktikum ini adalah untuk...
Menentukan kadar vitamin C
Mengidentifikasi senyawa golongan polifenol dan tanin
Mengetahui kadar air dalam tumbuhan
Menganalisis kandungan minyak atsiri
Menentukan kadar flavonoid total
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Warna hijau kehitaman setelah penambahan FeCl₃ menunjukkan adanya...
Flavonoid
Alkaloid
Tanin
Steroid
Glikosida
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reaksi warna positif dengan FeCl₃ dan negatif dengan gelatin menandakan...
Hanya flavonoid yang ada
Tanin dan polifenol ada
Polifenol ada, tanin tidak ada
Tanin jenuh
Senyawa terurai
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam uji gelatin, terbentuknya endapan putih menunjukkan...
Adanya polifenol
Tidak ada senyawa aktif
Adanya tanin
Adanya protein
Adanya lemak
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fungsi penambahan larutan NaCl 10% dalam uji gelatin adalah untuk...
Melarutkan tanin
Menurunkan pH
Membantu pembentukan endapan tanin
Mewarnai filtrat
Meningkatkan daya larut polifenol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan IVB digunakan untuk...
KLT
Uji gelatin
Uji FeCl₃
Blanko
Uji TLC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika hasil uji FeCl₃ dan gelatin keduanya positif, maka dapat disimpulkan bahwa...
Hanya polifenol yang ada
Tidak ada senyawa aktif
Tanin dan polifenol ada
Tidak ada tanin
Terdapat alkaloid
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