Exam 2 with Answer Key - Introductory General Chemistry II with lab | CHEM 1020, Exams of Chemistry

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Chem 1020 EXAM II 2-28-13 2 NAME Multiple Choice. Write the CAPITAL LETTER of the best response in the blank provided at the left. (3 points each). us) 1. Which of these compounds would be the most water soluble? A : c 0 () t ®) CH;CH,OH © i He C— (CHy)s CH; CH3CH, — C~ CH3 (D) CH3;CH, — O—CH,CH; (2)~CH,. 2. Which of these: lists the functional classes in order from /east oxidized to most oxidized? A a (B) alkane, aldehyde, alcohol, carboxylic acid ~ “(Dy earhoxylic-acid;-aleohol;-alkane;-aldehyde— oO z__,3. The boiling point of the molecule shown at the right is expected to be i (A) high because the molecular weight is high (B) low because the molecular weight islow . CH;~ C-O—H (C) high because the molecule cannot H-bond with itself (D) low because the molecule cannot H-bond with itself (E) high because the molecule can form two intermolecular H-bonds -_ C 4, Which of these is an accepted common name for the IUPAC name methanal? ~ (A) acetic acid (B) acetaldehyde (C) formaldehyde (D)formicacid _(E) all of these & 5. When enzymes within the liver detoxify drinking (“beverage”) alcohol, the first step is to Qondze ethanol to ethanal (B) reduce ethanol to carbon dioxide and water vapor ‘Oxidize-methanol.to-fermaldehyde (D) change beverage alcohol into “wood alcohol” (E) dehydrate the alcohol into an ether 4 CHC AL 6. If dissolved in water, which of the following substances would give the most acidic solution? oO (A) i (B) CH,- C-O—H (C) CH,CH ==CHCH; CH,CH,CH,CH,0H ~ (0) Kon () 2CH2CH,CH,0.