When KMnO4 is used to determine the content of calcium in calcium salt, the indicator used is methyl orange.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- When KMnO4 is used to determine the content of calcium in calcium salt, the indicator used is methyl orange. A: 正确 B: 错误
- In<br/>the acid-base titration of aspirin, neutral ethanol is required to be<br/>used as the solvent. What is the meaning of calling "neutral"?() A: neutral<br/>to the indicator used B: pH=7 C: ethanol<br/>to remove acidic impurities D: It<br/>is neutral to methyl orange E: relative<br/>to the tested substance
- The most commonly used drugs for cardiopulmonary resuscitation is() A: isoproterenol B: Atropine C: lidocaine D: calcium chloride E: adrenaline
- Which<br/>can be seen in CRF patient about calcium and phosphate() A: calcium↓<br/>phosphate↑ B: calcium↑<br/>phosphate↓ C: calcium↓<br/>phosphate↓ D: calcium↑<br/>phosphate↑ E: none of above
- This is _____ orange, ____ orange is orange.