You must insert …….bags inside cartons.
A: carbon
B: gel
C: silica gel
A: carbon
B: gel
C: silica gel
举一反三
- Which of the following silica gel as adsorbent in TLC, contains neither inorganic adhesive material(gypsum ustum) nor fluorescence indicator? A: Silica gel H B: Silica gel G C: Silica gel GF254 D: None of above
- silica gel A: 硅胶 B: % C: @
- Measure the rate of how the silica gel the moisture. A: absorb (v.) B: absorption (n.)
- Silica gel is belongs to ___ adsorbent. A: non-polar B: polar C: semi-chemical D: alkaline E: chemical
- The gel formed by methyl cellulose and gelatin can form a gel at a high temperature or a low temperature and is in the form of a solution at a medium temperature, which is called. A: concave gel B: convex gel C: hot gel D: cold gel