15. Ethers are in water. (Points: 1) O slightly soluble O very soluble O complet
ID: 1069352 • Letter: 1
Question
15. Ethers are in water. (Points: 1) O slightly soluble O very soluble O completely insoluble unstable 16. Oxidation of a thiol produces a (Points 1) O salt O aldehyde ketone O disulfide 17. In the IUPAC nomenclature system, the name of which of the following would end in "-al? (points 1) an alcohol an aldehyde an alkane a phenol 18. The name 4,5 dichlorocyclohexanone should be (Points: 1) 1,2-dichlorocyclohexanone 2,3-dichlorocyclohexanone 3,4 dichlorocyclohexanone 4,5 dichlorocyclohexanone 19. What is the major difference between a cyclic hemiacetal and a cyclic acetal? (Ponts 1) The cyclic hemiacetal is an alcohol, whereas the cyclic acetal is an ether. The cyclic hemiacetal is an acid, and the cyclic acetal is a base. The cyclic hemiacetal contains more carbons in the ring than the cyclic acetal. All of the responses are correct.Explanation / Answer
15.
Ethers are slightly soluble in water. So the answer is option 1( slightly soluble)
Water is polar in nature while Ether is non-polar. Ethers are very slightly soluble in water at around 6.8g/100g. This is due to the presence of oxygen in ethers which interact with hydrogen in water to produce H-bonding to make it slightly soluble.
16.
The oxidation of thiol forms disulfide – option 4
{It can either lose protons to form a disulfide bond (RSSR) or gain oxygens to form a short-lived sulfenic acid. That eventually forms a sulfinic acid and then a sulfonic acid.]
17.
The answer is aldehyde. So the option 2
The alkane – e is replaced by al for aldehyde
18.
It can also be named as 3,4 dichlorocyclohexanone ( if we do numbering in the anticlockwise direction)
The answer is Option no 3
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