Construct a simulated 1H NMR spectrum for 1,2-dichloroethane by dragging and dropping the appropriate splitting pattern into the box on the chemical shift baseline, and by dragging an integration value into the small box above the signal. Peak heights do not represent integration.

All hydrogens are in same environment. Hence it will not split which shows as singlet for 4 hydrogen

Explanation:

check the attachment for further explanations

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.