4. Some Compounds are given below CH3COOH, CH3COOCH2CH3, CH3CH2OH 2x3 = 6
a) Identify which of the above given compounds is an ester. Write its name.
b) Write the equation of reaction of preparation of the ester.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.