Water absorber used in combustion analysis is___________________?
Correct answer: D. Mg (CIO4)2
- A. 50% KOH
- B. Lime water
- C. CaCl2
- D. Mg (CIO4)2
Explanation
Anhydrous magnesium perchlorate, Mg(ClO4)2, absorbs the water formed when an organic compound is burned, allowing the hydrogen content to be determined. Calcium chloride can also absorb water in some applications, but magnesium perchlorate is the standard efficient water absorber in combustion analysis. The likely mistake is choosing CaCl2 because it is a familiar drying agent without considering the specific analytical method.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Classification of Organic Compounds
Organic compounds are classified by carbon skeleton into open-chain, branched-chain and cyclic compounds, including homocyclic and heterocyclic types. The classification also uses functional groups to distinguish hydrocarbons, halo compounds, alcohols, aldehydes, ketones, carboxylic acids and their derivatives, which is different from naming compounds by IUPAC rules.
Practise Fundamental Principles of Organic Chemistry
536 free Fundamental Principles of Organic Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Classification of Organic Compounds questions
A great variety of the organic compounds is due to its property of carbon_________________?
Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have________________?
According to vital force theory_______________?
Which of the following methods is used to estimate hydrogen in an organic compound ?
Combustion analysis is performed to determine__________________?
Empirical formula of chloroform is____________________?