1)Formula de structura a 4 compusi organici si sal denumiti.
2) 4 transformari care sa redee proprietatile chimice a substantelor incluse de la sarcina 1
3)Problema de calcul cu continut pe lung date pe scurt cu 4 operatii de calcul
4) 3 domenii de utilizare a unui compus organic

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.