please answer all the questions thouroghly (1-7)

1. What is the correct atomic orbital hybridization of alkene (ex. ethene) ? explain with your answer 2. Which of the following is the condensed formula for an ether? Choose your answer and Name each formula of the choices (from a to e) A) RCOH B) RCOOR' C) ROR' D) RCOOH E) RCOR 3. Identify the functional group present in the molecule shown. Choose your answer and Name the chemical structure. CH3-C-CH2CH A) ketone B) hydroxyl C) carboxyl D) aldehyde E) alkoxy 4. Identify the functional group present in the molecule shown. Choose your answer and Name the chemical structure. OH CH3-C-CH3 CH3 A) acyl B) hydroxyl C) carboxyl D) carbonyl E) alkoxy 5. What word best describes the geometry (shape) around a carbon atom of CH4 molecule? Choose your answer and explain how you choose your answer! A) tetrahedral B) planar C) regular D) linear E) unsaturated 6. Identify the functional group present in the molecule shown. Choose your answer and Name the chemical structure, HH H-C-C-C IT OH HH A) acyl B) hydroxyl C) ester D) carboxyl E) alkoxy 7. How many hydrogen atoms are in the molecule represented by the line drawing below? Name this structure