
LEMAK
Chemistry
12th Grade
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Lemak dan minyak mengandung jenis unsur yang sama, yaitu C, H, O. Perbedaannya terletak pada ….
A. Struktur molekul
B. Jumlah asam lemak
C. Ikatan antaratom karbon
D. Kereaktifan gugus ester
E. Jenis gugus polihidroksi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Ciri utama asam karboksilat dalam lemak adalah ….
A. Mengandung gugus karboksilat
B. Memiliki rantai karbon yang panjang
C. Memiliki ikatan rangkap dua
D. Dapat dihidrolisis
E. Membentuk sabun dengan logam alkali
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
3. Lemak adalah senyawa karbon yang termasuk golongan ….
A. Polialkohol
B. Ester
C. Asam karboksilat
D. Aldehida
E. Eter
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Oksidasi lemak akan menimbulkan bau tengik atau sering disebut ….
A. Oksidasi negatif
B. Antioksidan
C. Reduksi positif
D. Prooksidan
E. Viskositas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. Reaksi penyabunan adalah reaksi antara ….
A. Gliserol dan NaOH
B. Etanol dan NaOH
C. Asam karboksilat dan NaOH
D. Gliserida dan NaOH
E. Gliserol dan asam lemak
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. Satu molekul gliserol bereaksi dengan tiga molekul palmitoleat. Nama senyawa yang terbentuk adalah ….
A. Trigliserin
B. Tripalmitolein
C. Trigliserida
D. Tripalmitoleat
E. Gliserilpalmitoleat
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
7. Di antara asam-asam lemak berikut yang memiliki bilangan iodin paling tinggi adalah ….
A. Asam stearat
B. Asam linoleat
C. Asam palmitat
D. Asam linolenat
E. Asam oleat
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