Question

4 Synthetically, alkenes are prepared by introducing a double bond in saturated hydrocarbons through _____________of atoms or groups from two adjacent carbon atoms.
substitution
elimination
addition
Oxidation
5 Which of the following statements regarding alkanes is not true
Alkanes are non-polar molecules
Alkanes are soluble in water
Alkanes experience dispersion forces
Alkanes have low boiling points
6 _______________reaction is applicable to aldehyde andketones and leads to replacement of carbonyl oxygen by the group=CRR’ (where R and R’ are hydrogen or alkyl group).
Wittig
Wurtz
Sabatier Senderen’s
Fischer-Tropsch

Answer 1

4 Synthetically, alkenes are prepared by introducing a double bond in saturated hydrocarbons through elimination of atoms or groups from two adjacent carbon atoms.
5 Alkanes are soluble in water
6 Wittig reaction is applicable to aldehyde and ketones and leads to replacement of carbonyl oxygen by the group=CRR’ (where R and R’ are hydrogen or alkyl group).